# 44

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```44
&Ecirc;&Acirc;&Agrave;&Iacute;T2001/&sup1;2
= 2 : 3, CN : ND = 2 : 1. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring;
tg ∠CDA.
12. &Iuml;&euml;&icirc;&ugrave;&agrave;&auml;&uuml; &icirc;&ntilde;&iacute;&icirc;&acirc;&agrave;&iacute;&egrave;&yuml; ABCD &iuml;&eth;&agrave;&acirc;&egrave;&euml;&uuml;&iacute;&icirc;&eacute; &divide;&aring;&ograve;&ucirc;&eth;&aring;&otilde;&oacute;&atilde;&icirc;&euml;&uuml;&iacute;&icirc;&eacute; &iuml;&egrave;&eth;&agrave;&igrave;&egrave;&auml;&ucirc;
SABCD &eth;&agrave;&acirc;&iacute;&agrave; 288, &eth;&agrave;&auml;&egrave;&oacute;&ntilde; &acirc;&iuml;&egrave;&ntilde;&agrave;&iacute;&iacute;&icirc;&atilde;&icirc;
&acirc; &iacute;&aring;&aring; &oslash;&agrave;&eth;&agrave; &eth;&agrave;&acirc;&aring;&iacute; 6. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &eth;&agrave;&auml;&egrave;&oacute;&ntilde;
&oslash;&agrave;&eth;&agrave;, &acirc;&iuml;&egrave;&ntilde;&agrave;&iacute;&iacute;&icirc;&atilde;&icirc; &acirc; &iuml;&egrave;&eth;&agrave;&igrave;&egrave;&auml;&oacute; SABC.
&Ocirc;&Egrave;&Ccedil;&Egrave;&Ecirc;&Agrave;
&Iuml;&egrave;&ntilde;&uuml;&igrave;&aring;&iacute;&iacute;&ucirc;&eacute; &yacute;&ecirc;&ccedil;&agrave;&igrave;&aring;&iacute;
&Acirc;&iacute;&egrave;&igrave;&agrave;&iacute;&egrave;&aring;! &Aring;&ntilde;&euml;&egrave; &aring;&auml;&egrave;&iacute;&egrave;&ouml;&ucirc; &egrave;&ccedil;&igrave;&aring;&eth;&aring;&iacute;&egrave;&yuml; &iacute;&aring;
&oacute;&ecirc;&agrave;&ccedil;&agrave;&iacute;&ucirc;, &acirc;&ucirc;&eth;&agrave;&ccedil;&egrave;&ograve;&aring; &icirc;&ograve;&acirc;&aring;&ograve; &acirc; &aring;&auml;&egrave;&iacute;&egrave;&ouml;&agrave;&otilde; &Ntilde;&Egrave;.
&Oacute;&ntilde;&ecirc;&icirc;&eth;&aring;&iacute;&egrave;&aring; &ntilde;&acirc;&icirc;&aacute;&icirc;&auml;&iacute;&icirc;&atilde;&icirc; &iuml;&agrave;&auml;&aring;&iacute;&egrave;&yuml; &ntilde;&divide;&egrave;&ograve;&agrave;&eacute;&ograve;&aring;
2
&eth;&agrave;&acirc;&iacute;&ucirc;&igrave; 10 &igrave; &ntilde; .
&Acirc;&agrave;&eth;&egrave;&agrave;&iacute;&ograve; 1
1. &Ograve;&aring;&euml;&icirc; &aacute;&eth;&icirc;&oslash;&aring;&iacute;&icirc; &atilde;&icirc;&eth;&egrave;&ccedil;&icirc;&iacute;&ograve;&agrave;&euml;&uuml;&iacute;&icirc;.
&times;&aring;&eth;&aring;&ccedil; 3 &ntilde; &iuml;&icirc;&ntilde;&euml;&aring; &aacute;&eth;&icirc;&ntilde;&ecirc;&agrave; &oacute;&atilde;&icirc;&euml; &igrave;&aring;&aelig;&auml;&oacute;
&iacute;&agrave;&iuml;&eth;&agrave;&acirc;&euml;&aring;&iacute;&egrave;&yuml;&igrave;&egrave; &iuml;&icirc;&euml;&iacute;&icirc;&eacute; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&egrave; &egrave; &iuml;&icirc;&euml;&iacute;&icirc;&atilde;&icirc; &oacute;&ntilde;&ecirc;&icirc;&eth;&aring;&iacute;&egrave;&yuml; &ntilde;&ograve;&agrave;&euml; &eth;&agrave;&acirc;&iacute;&ucirc;&igrave; 60&deg;. &Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &acirc;&aring;&euml;&egrave;&divide;&egrave;&iacute;&oacute; &iuml;&icirc;&euml;&iacute;&icirc;&eacute; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&egrave;
&ograve;&aring;&euml;&agrave; &acirc; &yacute;&ograve;&icirc;&ograve; &igrave;&icirc;&igrave;&aring;&iacute;&ograve; &acirc;&eth;&aring;&igrave;&aring;&iacute;&egrave;.
2. &Iacute;&aring;&aacute;&icirc;&euml;&uuml;&oslash;&icirc;&eacute; &oslash;&agrave;&eth;&egrave;&ecirc; &igrave;&agrave;&ntilde;&ntilde;&icirc;&eacute; 350 &atilde;,
&iuml;&eth;&egrave;&ecirc;&eth;&aring;&iuml;&euml;&aring;&iacute;&iacute;&ucirc;&eacute; &ecirc; &ecirc;&icirc;&iacute;&ouml;&oacute; &iacute;&egrave;&ograve;&egrave;, &eth;&agrave;&acirc;&iacute;&icirc;&igrave;&aring;&eth;&iacute;&icirc; &acirc;&eth;&agrave;&ugrave;&agrave;&aring;&ograve;&ntilde;&yuml; &acirc; &acirc;&aring;&eth;&ograve;&egrave;&ecirc;&agrave;&euml;&uuml;&iacute;&icirc;&eacute; &iuml;&euml;&icirc;&ntilde;&ecirc;&icirc;&ntilde;&ograve;&egrave;. &Iacute;&agrave; &ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc; &iacute;&uuml;&thorn;&ograve;&icirc;&iacute;&icirc;&acirc; &ntilde;&egrave;&euml;&agrave; &iacute;&agrave;&ograve;&yuml;&aelig;&aring;&iacute;&egrave;&yuml; &iacute;&egrave;&ograve;&egrave; &acirc; &iacute;&egrave;&aelig;&iacute;&aring;&eacute; &ograve;&icirc;&divide;&ecirc;&aring; &ograve;&eth;&agrave;&aring;&ecirc;&ograve;&icirc;&eth;&egrave;&egrave; &aacute;&icirc;&euml;&uuml;&oslash;&aring;, &divide;&aring;&igrave; &acirc; &acirc;&aring;&eth;&otilde;&iacute;&aring;&eacute;?
3. &Ograve;&aring;&euml;&icirc; &igrave;&agrave;&ntilde;&ntilde;&icirc;&eacute; 1,5 &ecirc;&atilde; &ntilde;&ecirc;&icirc;&euml;&uuml;&ccedil;&egrave;&ograve; &iuml;&icirc;
&atilde;&icirc;&eth;&egrave;&ccedil;&icirc;&iacute;&ograve;&agrave;&euml;&uuml;&iacute;&icirc;&eacute; &iuml;&euml;&icirc;&ntilde;&ecirc;&icirc;&ntilde;&ograve;&egrave; &iuml;&icirc;&auml; &auml;&aring;&eacute;&ntilde;&ograve;&acirc;&egrave;&aring;&igrave; &atilde;&icirc;&eth;&egrave;&ccedil;&icirc;&iacute;&ograve;&agrave;&euml;&uuml;&iacute;&icirc; &iacute;&agrave;&iuml;&eth;&agrave;&acirc;&euml;&aring;&iacute;&iacute;&icirc;&eacute;
&ntilde;&egrave;&euml;&ucirc;. &Ecirc;&icirc;&yacute;&ocirc;&ocirc;&egrave;&ouml;&egrave;&aring;&iacute;&ograve; &ograve;&eth;&aring;&iacute;&egrave;&yuml; &ograve;&aring;&euml;&agrave; &icirc;
&iuml;&euml;&icirc;&ntilde;&ecirc;&icirc;&ntilde;&ograve;&uuml; 0,2. &Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &yacute;&iacute;&aring;&eth;&atilde;&egrave;&thorn;,
&acirc;&ucirc;&auml;&aring;&euml;&yuml;&aring;&igrave;&oacute;&thorn; &acirc; &acirc;&egrave;&auml;&aring; &ograve;&aring;&iuml;&euml;&agrave; &iacute;&agrave; &iuml;&oacute;&ograve;&egrave; 20 &igrave;.
4. &Ntilde;&icirc;&ntilde;&oacute;&auml; &ecirc;&oacute;&aacute;&egrave;&divide;&aring;&ntilde;&ecirc;&icirc;&eacute; &ocirc;&icirc;&eth;&igrave;&ucirc; &ntilde; &eth;&aring;&aacute;&eth;&icirc;&igrave; 20 &ntilde;&igrave; &auml;&icirc; &ecirc;&eth;&agrave;&aring;&acirc; &ccedil;&agrave;&iuml;&icirc;&euml;&iacute;&aring;&iacute; &acirc;&icirc;&auml;&icirc;&eacute;.
&Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &ntilde;&egrave;&euml;&oacute; &auml;&agrave;&acirc;&euml;&aring;&iacute;&egrave;&yuml; &acirc;&icirc;&auml;&ucirc; &iacute;&agrave;
&aacute;&icirc;&ecirc;&icirc;&acirc;&oacute;&thorn; &atilde;&eth;&agrave;&iacute;&uuml; &ntilde;&icirc;&ntilde;&oacute;&auml;&agrave;. &Agrave;&ograve;&igrave;&icirc;&ntilde;&ocirc;&aring;&eth;&iacute;&icirc;&aring;
&auml;&agrave;&acirc;&euml;&aring;&iacute;&egrave;&aring; &iacute;&aring; &oacute;&divide;&egrave;&ograve;&ucirc;&acirc;&agrave;&eacute;&ograve;&aring;. &Iuml;&euml;&icirc;&ograve;&iacute;&icirc;&ntilde;&ograve;&uuml;
3
&acirc;&icirc;&auml;&ucirc; 1000 &ecirc;&atilde; &igrave; .
5. &Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &iacute;&agrave;&divide;&agrave;&euml;&uuml;&iacute;&oacute;&thorn; &ograve;&aring;&igrave;&iuml;&aring;&eth;&agrave;&ograve;&oacute;&eth;&oacute; (&acirc; &deg;&Ntilde;) &ecirc;&oacute;&ntilde;&ecirc;&agrave; &icirc;&euml;&icirc;&acirc;&agrave; &igrave;&agrave;&ntilde;&ntilde;&icirc;&eacute;
1,2 &ecirc;&atilde;, &aring;&ntilde;&euml;&egrave; &iuml;&eth;&egrave; &icirc;&iuml;&oacute;&ntilde;&ecirc;&agrave;&iacute;&egrave;&egrave; &aring;&atilde;&icirc; &acirc; &acirc;&icirc;&auml;&oacute;
&igrave;&agrave;&ntilde;&ntilde;&icirc;&eacute; 3 &ecirc;&atilde; &iuml;&eth;&egrave; &ograve;&aring;&igrave;&iuml;&aring;&eth;&agrave;&ograve;&oacute;&eth;&aring; 10 &deg;&Ntilde;
&acirc;&icirc;&auml;&agrave; &iacute;&agrave;&atilde;&eth;&aring;&euml;&agrave;&ntilde;&uuml; &iacute;&agrave; 2 &Ecirc;. &Oacute;&auml;&aring;&euml;&uuml;&iacute;&agrave;&yuml; &ograve;&aring;&iuml;&euml;&icirc;&aring;&igrave;&ecirc;&icirc;&ntilde;&ograve;&uuml; &icirc;&euml;&icirc;&acirc;&agrave; 250 &Auml;&aelig; &ecirc;&atilde; ⋅ &Ecirc; ,
&acirc;&icirc;&auml;&ucirc; 4200 &Auml;&aelig; &ecirc;&atilde; ⋅ &Ecirc; .
6. &Aacute;&agrave;&ograve;&agrave;&eth;&aring;&yuml; &ntilde; &Yacute;&Auml;&Ntilde;, &eth;&agrave;&acirc;&iacute;&icirc;&eacute; 10 &Acirc;,
&egrave;&igrave;&aring;&aring;&ograve; &acirc;&iacute;&oacute;&ograve;&eth;&aring;&iacute;&iacute;&aring;&aring; &ntilde;&icirc;&iuml;&eth;&icirc;&ograve;&egrave;&acirc;&euml;&aring;&iacute;&egrave;&aring; 2 &Icirc;&igrave;.
&Iuml;&eth;&egrave; &ecirc;&agrave;&ecirc;&icirc;&igrave; &acirc;&iacute;&aring;&oslash;&iacute;&aring;&igrave; &ntilde;&icirc;&iuml;&eth;&icirc;&ograve;&egrave;&acirc;&euml;&aring;&iacute;&egrave;&egrave;
&ntilde;&egrave;&euml;&agrave; &ograve;&icirc;&ecirc;&agrave; &acirc; &ouml;&aring;&iuml;&egrave; &aacute;&oacute;&auml;&aring;&ograve; &eth;&agrave;&acirc;&iacute;&agrave; 2 &Agrave;?
7. &Igrave;&agrave;&atilde;&iacute;&egrave;&ograve;&iacute;&ucirc;&eacute; &iuml;&icirc;&ograve;&icirc;&ecirc; &divide;&aring;&eth;&aring;&ccedil; &ecirc;&agrave;&aelig;&auml;&ucirc;&eacute;
&acirc;&egrave;&ograve;&icirc;&ecirc; &ecirc;&agrave;&ograve;&oacute;&oslash;&ecirc;&egrave;, &iuml;&icirc;&igrave;&aring;&ugrave;&aring;&iacute;&iacute;&icirc;&eacute; &acirc; &igrave;&agrave;&atilde;&iacute;&egrave;&ograve;&iacute;&icirc;&aring; &iuml;&icirc;&euml;&aring;, &eth;&agrave;&acirc;&aring;&iacute; 0,2 &Acirc;&aacute;. &Igrave;&agrave;&atilde;&iacute;&egrave;&ograve;&iacute;&icirc;&aring;
&iuml;&icirc;&euml;&aring; &eth;&agrave;&acirc;&iacute;&icirc;&igrave;&aring;&eth;&iacute;&icirc; &oacute;&aacute;&ucirc;&acirc;&agrave;&aring;&ograve; &auml;&icirc; &iacute;&oacute;&euml;&yuml; &ccedil;&agrave;
&acirc;&eth;&aring;&igrave;&yuml; 0,4 &ntilde;, &iuml;&eth;&egrave; &yacute;&ograve;&icirc;&igrave; &acirc; &ecirc;&agrave;&ograve;&oacute;&oslash;&ecirc;&aring; &egrave;&iacute;&auml;&oacute;&ouml;&egrave;&eth;&oacute;&aring;&ograve;&ntilde;&yuml; &Yacute;&Auml;&Ntilde;, &eth;&agrave;&acirc;&iacute;&agrave;&yuml; 15 &Acirc;. &Ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc;
&acirc;&egrave;&ograve;&ecirc;&icirc;&acirc; &egrave;&igrave;&aring;&aring;&ograve; &ecirc;&agrave;&ograve;&oacute;&oslash;&ecirc;&agrave;?
8. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &iuml;&aring;&eth;&egrave;&icirc;&auml; (&acirc; &igrave;&egrave;&ecirc;&eth;&icirc;&ntilde;&aring;&ecirc;&oacute;&iacute;&auml;&agrave;&otilde;) &ecirc;&icirc;&euml;&aring;&aacute;&agrave;&iacute;&egrave;&eacute; &ecirc;&icirc;&iacute;&ograve;&oacute;&eth;&agrave;, &egrave;&ccedil;&euml;&oacute;&divide;&agrave;&thorn;&ugrave;&aring;&atilde;&icirc; &yacute;&euml;&aring;&ecirc;&ograve;&eth;&icirc;&igrave;&agrave;&atilde;&iacute;&egrave;&ograve;&iacute;&oacute;&thorn; &acirc;&icirc;&euml;&iacute;&oacute;, &auml;&euml;&egrave;&iacute;&agrave;
&ecirc;&icirc;&ograve;&icirc;&eth;&icirc;&eacute; 600 &igrave;. &Ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml; &ntilde;&acirc;&aring;&ograve;&agrave; &eth;&agrave;&acirc;&iacute;&agrave;
8
3 ⋅ 10 &igrave;/&ntilde;.
9. &Iuml;&eth;&egrave; &iuml;&icirc;&ntilde;&agrave;&auml;&ecirc;&aring; &iacute;&agrave; &iuml;&euml;&agrave;&iacute;&aring;&ograve;&oacute;, &euml;&egrave;&oslash;&aring;&iacute;&iacute;&oacute;&thorn; &agrave;&ograve;&igrave;&icirc;&ntilde;&ocirc;&aring;&eth;&ucirc;, &ecirc;&icirc;&ntilde;&igrave;&egrave;&divide;&aring;&ntilde;&ecirc;&egrave;&eacute; &ecirc;&icirc;&eth;&agrave;&aacute;&euml;&uuml;
&gt;
C
&gt;
C
&ntilde;&iacute;&agrave;&divide;&agrave;&euml;&agrave; &icirc;&aacute;&euml;&aring;&ograve;&agrave;&aring;&ograve; &aring;&aring; &iacute;&agrave; &igrave;&agrave;&euml;&icirc;&eacute; &acirc;&ucirc;&ntilde;&icirc;&ograve;&aring; &ntilde;
&acirc;&ucirc;&ecirc;&euml;&thorn;&divide;&aring;&iacute;&iacute;&ucirc;&igrave;&egrave; &auml;&acirc;&egrave;&atilde;&agrave;&ograve;&aring;&euml;&yuml;&igrave;&egrave;. &Ccedil;&agrave;&ograve;&aring;&igrave; &icirc;&iacute;
&oacute;&igrave;&aring;&iacute;&uuml;&oslash;&agrave;&aring;&ograve; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml; &iacute;&agrave; 20%, &egrave; &iuml;&eth;&egrave;
&iacute;&icirc;&acirc;&icirc;&igrave; &eth;&aring;&aelig;&egrave;&igrave;&aring; &icirc;&aacute;&euml;&aring;&ograve;&agrave; &eth;&agrave;&ntilde;&otilde;&icirc;&auml; &eth;&aring;&agrave;&ecirc;&ograve;&egrave;&acirc;&iacute;&icirc;&atilde;&icirc; &ograve;&icirc;&iuml;&euml;&egrave;&acirc;&agrave; &ntilde;&icirc;&ntilde;&ograve;&agrave;&acirc;&euml;&yuml;&aring;&ograve; 3 &ecirc;&atilde;/&ntilde;. &Ecirc;&agrave;&ecirc;&egrave;&igrave; &aacute;&oacute;&auml;&aring;&ograve; &eth;&agrave;&ntilde;&otilde;&icirc;&auml; &ograve;&icirc;&iuml;&euml;&egrave;&acirc;&agrave; &iuml;&eth;&egrave; &oacute;&igrave;&aring;&iacute;&uuml;&oslash;&aring;&iacute;&egrave;&egrave; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&egrave; &icirc;&aacute;&euml;&aring;&ograve;&agrave; &aring;&ugrave;&aring; &acirc;&auml;&acirc;&icirc;&aring;?
&Ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml; &acirc;&ucirc;&aacute;&eth;&icirc;&ntilde;&agrave; &atilde;&agrave;&ccedil;&icirc;&acirc; &iuml;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&iacute;&agrave;.
10. &Auml;&agrave;&acirc;&euml;&aring;&iacute;&egrave;&aring; &ograve;&eth;&aring;&otilde; &igrave;&icirc;&euml;&aring;&eacute; &egrave;&auml;&aring;&agrave;&euml;&uuml;&iacute;&icirc;&atilde;&icirc; &atilde;&agrave;&ccedil;&agrave; &acirc; &egrave;&ccedil;&icirc;&otilde;&icirc;&eth;&iacute;&icirc;&igrave; &iuml;&eth;&icirc;&ouml;&aring;&ntilde;&ntilde;&aring; &oacute;&igrave;&aring;&iacute;&uuml;&oslash;&egrave;&euml;&egrave; &acirc; 1,5 &eth;&agrave;&ccedil;&agrave;, &agrave; &ccedil;&agrave;&ograve;&aring;&igrave; &acirc; &egrave;&ccedil;&icirc;&aacute;&agrave;&eth;&iacute;&icirc;&igrave;
&iuml;&eth;&icirc;&ouml;&aring;&ntilde;&ntilde;&aring; &aring;&atilde;&icirc; &ograve;&aring;&igrave;&iuml;&aring;&eth;&agrave;&ograve;&oacute;&eth;&oacute; &auml;&icirc;&acirc;&aring;&euml;&egrave; &auml;&icirc;
&iacute;&agrave;&divide;&agrave;&euml;&uuml;&iacute;&icirc;&atilde;&icirc; &ccedil;&iacute;&agrave;&divide;&aring;&iacute;&egrave;&yuml;. &Iuml;&eth;&egrave; &yacute;&ograve;&icirc;&igrave; &atilde;&agrave;&ccedil;
&ntilde;&icirc;&acirc;&aring;&eth;&oslash;&egrave;&euml; &eth;&agrave;&aacute;&icirc;&ograve;&oacute; 4980 &Auml;&aelig;. &Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &iacute;&agrave;&divide;&agrave;&euml;&uuml;&iacute;&oacute;&thorn; &ograve;&aring;&igrave;&iuml;&aring;&eth;&agrave;&ograve;&oacute;&eth;&oacute; &atilde;&agrave;&ccedil;&agrave; (&acirc;
&deg;&Ntilde;). &Oacute;&iacute;&egrave;&acirc;&aring;&eth;&ntilde;&agrave;&euml;&uuml;&iacute;&agrave;&yuml; &atilde;&agrave;&ccedil;&icirc;&acirc;&agrave;&yuml; &iuml;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&iacute;&agrave;&yuml; &eth;&agrave;&acirc;&iacute;&agrave; 8300 &Auml;&aelig; &ecirc;&igrave;&icirc;&euml;&uuml; ⋅ &Ecirc; .
11. &Auml;&acirc;&agrave; &icirc;&auml;&egrave;&iacute;&agrave;&ecirc;&icirc;&acirc;&ucirc;&otilde; &oslash;&agrave;&eth;&egrave;&ecirc;&agrave;, &iacute;&aring;&ntilde;&oacute;&ugrave;&egrave;&aring; &eth;&agrave;&ccedil;&iacute;&icirc;&egrave;&igrave;&aring;&iacute;&iacute;&ucirc;&aring; &ccedil;&agrave;&eth;&yuml;&auml;&ucirc; &icirc;&auml;&egrave;&iacute;&agrave;&ecirc;&icirc;&acirc;&icirc;&eacute; &acirc;&aring;&euml;&egrave;&divide;&egrave;&iacute;&ucirc; &egrave; &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&aring;&iacute;&iacute;&ucirc;&aring; &iacute;&aring;&iuml;&eth;&icirc;&acirc;&icirc;&auml;&yuml;&ugrave;&aring;&eacute; &iuml;&eth;&oacute;&aelig;&egrave;&iacute;&icirc;&eacute; &aelig;&aring;&ntilde;&ograve;&ecirc;&icirc;&ntilde;&ograve;&uuml;&thorn; 15 &Iacute;/&igrave;,
&iacute;&agrave;&otilde;&icirc;&auml;&yuml;&ograve;&ntilde;&yuml; &iacute;&agrave; &atilde;&euml;&agrave;&auml;&ecirc;&icirc;&igrave; &atilde;&icirc;&eth;&egrave;&ccedil;&icirc;&iacute;&ograve;&agrave;&euml;&uuml;&iacute;&icirc;&igrave;
&ntilde;&ograve;&icirc;&euml;&aring;. &Oslash;&agrave;&eth;&egrave;&ecirc;&egrave; &ecirc;&icirc;&euml;&aring;&aacute;&euml;&thorn;&ograve;&ntilde;&yuml; &ograve;&agrave;&ecirc;, &divide;&ograve;&icirc;
&eth;&agrave;&ntilde;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&aring; &igrave;&aring;&aelig;&auml;&oacute; &iacute;&egrave;&igrave;&egrave; &igrave;&aring;&iacute;&yuml;&aring;&ograve;&ntilde;&yuml; &icirc;&ograve; L
&auml;&icirc; 4L, &atilde;&auml;&aring; L = 3 &ntilde;&igrave;. &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &acirc;&aring;&euml;&egrave;&divide;&egrave;&iacute;&oacute;
&ccedil;&agrave;&eth;&yuml;&auml;&agrave; &iacute;&agrave; &ecirc;&agrave;&aelig;&auml;&icirc;&igrave; &oslash;&agrave;&eth;&egrave;&ecirc;&aring; (&acirc; &iacute;&Ecirc;&euml;),
&aring;&ntilde;&euml;&egrave; &egrave;&ccedil;&acirc;&aring;&ntilde;&ograve;&iacute;&icirc;, &divide;&ograve;&icirc; &acirc; &iacute;&aring;&auml;&aring;&ocirc;&icirc;&eth;&igrave;&egrave;&eth;&icirc;&acirc;&agrave;&iacute;&iacute;&icirc;&igrave; &ntilde;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&egrave; &auml;&euml;&egrave;&iacute;&agrave; &iuml;&eth;&oacute;&aelig;&egrave;&iacute;&ucirc; &eth;&agrave;&acirc;&iacute;&agrave;
3L. &Ecirc;&icirc;&yacute;&ocirc;&ocirc;&egrave;&ouml;&egrave;&aring;&iacute;&ograve; &acirc; &ccedil;&agrave;&ecirc;&icirc;&iacute;&aring; &Ecirc;&oacute;&euml;&icirc;&iacute;&agrave;
9
&eth;&agrave;&acirc;&aring;&iacute; k = 9 ⋅ 10 &igrave;/&Ocirc;.
12. &Acirc;&icirc; &ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc; &eth;&agrave;&ccedil; &oacute;&igrave;&aring;&iacute;&uuml;&oslash;&egrave;&euml;&ntilde;&yuml; &eth;&agrave;&auml;&egrave;&oacute;&ntilde; &icirc;&eth;&aacute;&egrave;&ograve;&ucirc; &yacute;&euml;&aring;&ecirc;&ograve;&eth;&icirc;&iacute;&agrave; &iuml;&eth;&egrave; &iuml;&aring;&eth;&aring;&otilde;&icirc;&auml;&aring;
&agrave;&ograve;&icirc;&igrave;&agrave; &egrave;&ccedil; &icirc;&auml;&iacute;&icirc;&atilde;&icirc; &ntilde;&ograve;&agrave;&ouml;&egrave;&icirc;&iacute;&agrave;&eth;&iacute;&icirc;&atilde;&icirc; &ntilde;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&yuml; &acirc; &auml;&eth;&oacute;&atilde;&icirc;&aring;, &aring;&ntilde;&euml;&egrave; &euml;&egrave;&iacute;&aring;&eacute;&iacute;&agrave;&yuml; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml;
&yacute;&euml;&aring;&ecirc;&ograve;&eth;&icirc;&iacute;&agrave; &oacute;&acirc;&aring;&euml;&egrave;&divide;&egrave;&euml;&agrave;&ntilde;&uuml; &iuml;&eth;&egrave; &yacute;&ograve;&icirc;&igrave; &acirc; 4
&eth;&agrave;&ccedil;&agrave;?
&gt;
C
&Acirc;&agrave;&eth;&egrave;&agrave;&iacute;&ograve; 2
1. &Ograve;&icirc;&eth;&igrave;&icirc;&aelig;&aring;&iacute;&egrave;&aring; &agrave;&acirc;&ograve;&icirc;&igrave;&icirc;&aacute;&egrave;&euml;&yuml; &auml;&icirc; &iuml;&icirc;&euml;&iacute;&icirc;&eacute; &icirc;&ntilde;&ograve;&agrave;&iacute;&icirc;&acirc;&ecirc;&egrave; &ccedil;&agrave;&iacute;&yuml;&euml;&icirc; 5 &ntilde; &egrave; &iuml;&eth;&icirc;&egrave;&ntilde;&otilde;&icirc;&auml;&egrave;&euml;&icirc; &ntilde; &iuml;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&iacute;&ucirc;&igrave; &oacute;&ntilde;&ecirc;&icirc;&eth;&aring;&iacute;&egrave;&aring;&igrave;
2
4 &igrave; &ntilde; . &Iacute;&agrave;&eacute;&auml;&egrave;&ograve;&aring; &ograve;&icirc;&eth;&igrave;&icirc;&ccedil;&iacute;&icirc;&eacute; &iuml;&oacute;&ograve;&uuml;.
2. &Iacute;&agrave; &ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc; &iuml;&eth;&icirc;&ouml;&aring;&iacute;&ograve;&icirc;&acirc; &oacute;&igrave;&aring;&iacute;&uuml;&oslash;&egrave;&ograve;&ntilde;&yuml; &ntilde;&egrave;&euml;&agrave; &ograve;&yuml;&atilde;&icirc;&ograve;&aring;&iacute;&egrave;&yuml; &igrave;&aring;&aelig;&auml;&oacute; &auml;&acirc;&oacute;&igrave;&yuml; &icirc;&auml;&egrave;&iacute;&agrave;&ecirc;&icirc;&acirc;&ucirc;&igrave;&egrave; &icirc;&auml;&iacute;&icirc;&eth;&icirc;&auml;&iacute;&ucirc;&igrave;&egrave; &oslash;&agrave;&eth;&agrave;&igrave;&egrave;, &aring;&ntilde;&euml;&egrave;
&acirc;&iacute;&agrave;&divide;&agrave;&euml;&aring; &oslash;&agrave;&eth;&ucirc; &ntilde;&icirc;&iuml;&eth;&egrave;&ecirc;&agrave;&ntilde;&agrave;&euml;&egrave;&ntilde;&uuml; &auml;&eth;&oacute;&atilde; &ntilde;
&auml;&eth;&oacute;&atilde;&icirc;&igrave;, &agrave; &ccedil;&agrave;&ograve;&aring;&igrave; &icirc;&auml;&egrave;&iacute; &egrave;&ccedil; &oslash;&agrave;&eth;&icirc;&acirc; &icirc;&ograve;&icirc;&auml;&acirc;&egrave;&iacute;&oacute;&euml;&egrave; &iacute;&agrave; &eth;&agrave;&ntilde;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&aring;, &eth;&agrave;&acirc;&iacute;&icirc;&aring; &ograve;&eth;&aring;&igrave;
&eth;&agrave;&auml;&egrave;&oacute;&ntilde;&agrave;&igrave; &oslash;&agrave;&eth;&icirc;&acirc;?
3. &Icirc;&auml;&iacute;&icirc;&eth;&icirc;&auml;&iacute;&icirc;&aring; &ograve;&aring;&euml;&icirc; &icirc;&aacute;&uacute;&aring;&igrave;&icirc;&igrave;
3
0,0003 &igrave; &iuml;&euml;&agrave;&acirc;&agrave;&aring;&ograve; &acirc; &aelig;&egrave;&auml;&ecirc;&icirc;&ntilde;&ograve;&egrave;, &iuml;&euml;&icirc;&ograve;&iacute;&icirc;&ntilde;&ograve;&uuml; &ecirc;&icirc;&ograve;&icirc;&eth;&icirc;&eacute; &acirc; 5 &eth;&agrave;&ccedil; &aacute;&icirc;&euml;&uuml;&oslash;&aring; &iuml;&euml;&icirc;&ograve;&iacute;&icirc;&ntilde;&ograve;&egrave; &igrave;&agrave;&ograve;&aring;&eth;&egrave;&agrave;&euml;&agrave; &ograve;&aring;&euml;&agrave;. &Ecirc;&agrave;&ecirc;&icirc;&eacute; &icirc;&aacute;&uacute;&aring;&igrave; &ograve;&aring;&euml;&agrave;
3
(&acirc; &ntilde;&igrave; ) &aacute;&oacute;&auml;&aring;&ograve; &acirc;&ucirc;&ntilde;&ograve;&oacute;&iuml;&agrave;&ograve;&uuml; &iacute;&agrave;&auml; &iuml;&icirc;&acirc;&aring;&eth;&otilde;&iacute;&icirc;&ntilde;&ograve;&uuml;&thorn; &aelig;&egrave;&auml;&ecirc;&icirc;&ntilde;&ograve;&egrave;?
4. &Atilde;&agrave;&ccedil; &icirc;&otilde;&euml;&agrave;&auml;&egrave;&euml;&egrave; &iuml;&eth;&egrave; &iuml;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&iacute;&icirc;&igrave;
&auml;&agrave;&acirc;&euml;&aring;&iacute;&egrave;&egrave; &icirc;&ograve; 127 &deg;&Ntilde; &auml;&icirc; 27 &deg;&Ntilde;. &Iacute;&agrave;
&ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc; &iuml;&eth;&icirc;&ouml;&aring;&iacute;&ograve;&icirc;&acirc; &iacute;&agrave;&auml;&icirc; &iuml;&icirc;&ntilde;&euml;&aring; &yacute;&ograve;&icirc;&atilde;&icirc;
&oacute;&igrave;&aring;&iacute;&uuml;&oslash;&egrave;&ograve;&uuml; &auml;&agrave;&acirc;&euml;&aring;&iacute;&egrave;&aring; &atilde;&agrave;&ccedil;&agrave; &acirc; &egrave;&ccedil;&icirc;&ograve;&aring;&eth;&igrave;&egrave;&divide;&aring;&ntilde;&ecirc;&icirc;&igrave; &iuml;&eth;&icirc;&ouml;&aring;&ntilde;&ntilde;&aring;, &divide;&ograve;&icirc;&aacute;&ucirc; &icirc;&aacute;&uacute;&aring;&igrave; &ntilde;&ograve;&agrave;&euml;
&eth;&agrave;&acirc;&aring;&iacute; &iuml;&aring;&eth;&acirc;&icirc;&iacute;&agrave;&divide;&agrave;&euml;&uuml;&iacute;&icirc;&igrave;&oacute;?
5. &Auml;&acirc;&agrave; &iuml;&euml;&icirc;&ntilde;&ecirc;&egrave;&otilde; &acirc;&icirc;&ccedil;&auml;&oacute;&oslash;&iacute;&ucirc;&otilde; &ecirc;&icirc;&iacute;&auml;&aring;&iacute;&ntilde;&agrave;&ograve;&icirc;&eth;&agrave;, &iuml;&aring;&eth;&acirc;&ucirc;&eacute; &ccedil;&agrave;&eth;&yuml;&aelig;&aring;&iacute;&iacute;&ucirc;&eacute; &auml;&icirc; &iacute;&agrave;&iuml;&eth;&yuml;&aelig;&aring;&iacute;&egrave;&yuml; 42 &Acirc;, &agrave; &acirc;&ograve;&icirc;&eth;&icirc;&eacute; &iacute;&aring;&ccedil;&agrave;&eth;&yuml;&aelig;&aring;&iacute;&iacute;&ucirc;&eacute;, &ntilde;&icirc;&aring;&auml;&egrave;&iacute;&egrave;&euml;&egrave; &iuml;&agrave;&eth;&agrave;&euml;&euml;&aring;&euml;&uuml;&iacute;&icirc;, &iuml;&icirc;&ntilde;&euml;&aring;
&divide;&aring;&atilde;&icirc; &iacute;&agrave;&iuml;&eth;&yuml;&aelig;&aring;&iacute;&egrave;&aring; &iacute;&agrave; &ecirc;&icirc;&iacute;&auml;&aring;&iacute;&ntilde;&agrave;&ograve;&icirc;&eth;&agrave;&otilde;
&ntilde;&ograve;&agrave;&euml;&icirc; 7 &Acirc;. &Acirc;&icirc; &ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc; &eth;&agrave;&ccedil; &eth;&agrave;&ntilde;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&aring;
&igrave;&aring;&aelig;&auml;&oacute; &iuml;&euml;&agrave;&ntilde;&ograve;&egrave;&iacute;&agrave;&igrave;&egrave; &oacute; &acirc;&ograve;&icirc;&eth;&icirc;&atilde;&icirc; &ecirc;&icirc;&iacute;&auml;&aring;&iacute;&ntilde;&agrave;&ograve;&icirc;&eth;&agrave; &igrave;&aring;&iacute;&uuml;&oslash;&aring;, &divide;&aring;&igrave; &oacute; &iuml;&aring;&eth;&acirc;&icirc;&atilde;&icirc;, &aring;&ntilde;&euml;&egrave;
&iuml;&euml;&icirc;&ugrave;&agrave;&auml;&egrave; &egrave;&otilde; &iuml;&euml;&agrave;&ntilde;&ograve;&egrave;&iacute; &icirc;&auml;&egrave;&iacute;&agrave;&ecirc;&icirc;&acirc;&ucirc;?
6. &Iuml;&icirc; &iuml;&eth;&icirc;&acirc;&icirc;&auml;&iacute;&egrave;&ecirc;&oacute; &ntilde;&icirc;&iuml;&eth;&icirc;&ograve;&egrave;&acirc;&euml;&aring;&iacute;&egrave;&aring;&igrave;
17 &Icirc;&igrave; &iuml;&eth;&icirc;&iuml;&oacute;&ntilde;&ecirc;&agrave;&euml;&egrave; &iuml;&icirc;&ntilde;&ograve;&icirc;&yuml;&iacute;&iacute;&ucirc;&eacute; &ograve;&icirc;&ecirc; &acirc;
&ograve;&aring;&divide;&aring;&iacute;&egrave;&aring; 9 &ntilde;. &Ecirc;&agrave;&ecirc;&icirc;&aring; &ecirc;&icirc;&euml;&egrave;&divide;&aring;&ntilde;&ograve;&acirc;&icirc; &ograve;&aring;&iuml;&euml;&icirc;&ograve;&ucirc; &acirc;&ucirc;&auml;&aring;&euml;&egrave;&euml;&icirc;&ntilde;&uuml; &acirc; &iuml;&eth;&icirc;&acirc;&icirc;&auml;&iacute;&egrave;&ecirc;&aring; &ccedil;&agrave; &yacute;&ograve;&icirc;
&acirc;&eth;&aring;&igrave;&yuml;, &aring;&ntilde;&euml;&egrave; &divide;&aring;&eth;&aring;&ccedil; &aring;&atilde;&icirc; &ntilde;&aring;&divide;&aring;&iacute;&egrave;&aring; &iuml;&eth;&icirc;&oslash;&aring;&euml;
&ccedil;&agrave;&eth;&yuml;&auml;, &eth;&agrave;&acirc;&iacute;&ucirc;&eacute; 3 &Ecirc;&euml;?
7. &Ecirc;&agrave;&ecirc;&icirc;&acirc;&agrave; &auml;&icirc;&euml;&aelig;&iacute;&agrave; &aacute;&ucirc;&ograve;&uuml; &auml;&euml;&egrave;&iacute;&agrave; (&acirc;
&ntilde;&igrave;) &igrave;&agrave;&ograve;&aring;&igrave;&agrave;&ograve;&egrave;&divide;&aring;&ntilde;&ecirc;&icirc;&atilde;&icirc; &igrave;&agrave;&yuml;&ograve;&iacute;&egrave;&ecirc;&agrave; &iacute;&agrave;
&Euml;&oacute;&iacute;&aring;, &divide;&ograve;&icirc;&aacute;&ucirc; &iuml;&aring;&eth;&egrave;&icirc;&auml; &aring;&atilde;&icirc; &ecirc;&icirc;&euml;&aring;&aacute;&agrave;&iacute;&egrave;&eacute;
&aacute;&ucirc;&euml; &ograve;&agrave;&ecirc;&egrave;&igrave; &aelig;&aring;, &ecirc;&agrave;&ecirc; &iuml;&aring;&eth;&egrave;&icirc;&auml; &ecirc;&icirc;&euml;&aring;&aacute;&agrave;&iacute;&egrave;&eacute;
&igrave;&agrave;&ograve;&aring;&igrave;&agrave;&ograve;&egrave;&divide;&aring;&ntilde;&ecirc;&icirc;&atilde;&icirc; &igrave;&agrave;&yuml;&ograve;&iacute;&egrave;&ecirc;&agrave; &auml;&euml;&egrave;&iacute;&icirc;&eacute;
54 &ntilde;&igrave; &iacute;&agrave; &Ccedil;&aring;&igrave;&euml;&aring;? &Oacute;&ntilde;&ecirc;&icirc;&eth;&aring;&iacute;&egrave;&aring; &ntilde;&egrave;&euml;&ucirc; &ograve;&yuml;&aelig;&aring;&ntilde;&ograve;&egrave; &iacute;&agrave; &Euml;&oacute;&iacute;&aring; &acirc; 6 &eth;&agrave;&ccedil; &igrave;&aring;&iacute;&uuml;&oslash;&aring;, &divide;&aring;&igrave;
&iacute;&agrave; &Ccedil;&aring;&igrave;&euml;&aring;.
8. &ETH;&agrave;&ntilde;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&aring; &icirc;&ograve; &iuml;&eth;&aring;&auml;&igrave;&aring;&ograve;&agrave; &auml;&icirc; &ntilde;&icirc;&aacute;&egrave;&eth;&agrave;&thorn;&ugrave;&aring;&eacute; &euml;&egrave;&iacute;&ccedil;&ucirc; &acirc; 1,5 &eth;&agrave;&ccedil;&agrave; &aacute;&icirc;&euml;&uuml;&oslash;&aring; &ocirc;&icirc;&ecirc;&oacute;&ntilde;&iacute;&icirc;&atilde;&icirc;. &Acirc;&icirc; &ntilde;&ecirc;&icirc;&euml;&uuml;&ecirc;&icirc; &eth;&agrave;&ccedil; &aacute;&icirc;&euml;&uuml;&oslash;&aring; &ocirc;&icirc;&ecirc;&oacute;&ntilde;&iacute;&icirc;&atilde;&icirc; &eth;&agrave;&ntilde;&ntilde;&ograve;&icirc;&yuml;&iacute;&egrave;&aring; &icirc;&ograve; &egrave;&ccedil;&icirc;&aacute;&eth;&agrave;&aelig;&aring;&iacute;&egrave;&yuml;
&auml;&icirc; &euml;&egrave;&iacute;&ccedil;&ucirc;?
9. &Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &igrave;&agrave;&ntilde;&ntilde;&oacute; &atilde;&eth;&oacute;&ccedil;&agrave;, &ecirc;&icirc;&ograve;&icirc;&eth;&ucirc;&eacute; &iacute;&agrave;&auml;&icirc; &ntilde;&aacute;&eth;&icirc;&ntilde;&egrave;&ograve;&uuml; &ntilde; &agrave;&yacute;&eth;&icirc;&ntilde;&ograve;&agrave;&ograve;&agrave; &icirc;&aacute;&ugrave;&aring;&eacute;
&igrave;&agrave;&ntilde;&ntilde;&icirc;&eacute; 500 &ecirc;&atilde;, &auml;&acirc;&egrave;&aelig;&oacute;&ugrave;&aring;&atilde;&icirc;&ntilde;&yuml; &eth;&agrave;&acirc;&iacute;&icirc;&igrave;&aring;&eth;&iacute;&icirc; &acirc;&iacute;&egrave;&ccedil;, &divide;&ograve;&icirc;&aacute;&ucirc; &icirc;&iacute; &ntilde;&ograve;&agrave;&euml; &iuml;&icirc;&auml;&iacute;&egrave;&igrave;&agrave;&ograve;&uuml;&ntilde;&yuml; &ntilde; &ograve;&agrave;&ecirc;&icirc;&eacute; &aelig;&aring; &iuml;&icirc; &acirc;&aring;&euml;&egrave;&divide;&egrave;&iacute;&aring; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml;&thorn;. &Iuml;&icirc;&auml;&uacute;&aring;&igrave;&iacute;&agrave;&yuml; &ntilde;&egrave;&euml;&agrave; &eth;&agrave;&acirc;&iacute;&agrave; 4,5 &ecirc;&Iacute;,
&ntilde;&egrave;&euml;&agrave; &ntilde;&icirc;&iuml;&eth;&icirc;&ograve;&egrave;&acirc;&euml;&aring;&iacute;&egrave;&yuml; &iuml;&eth;&icirc;&iuml;&icirc;&eth;&ouml;&egrave;&icirc;&iacute;&agrave;&euml;&uuml;&iacute;&agrave; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&egrave; &agrave;&yacute;&eth;&icirc;&ntilde;&ograve;&agrave;&ograve;&agrave;.
10. &Iacute;&aring;&acirc;&aring;&ntilde;&icirc;&igrave;&ucirc;&eacute; &ntilde;&ograve;&aring;&eth;&aelig;&aring;&iacute;&uuml;, &iacute;&agrave; &ecirc;&icirc;&iacute;&ouml;&agrave;&otilde; &ecirc;&icirc;&ograve;&icirc;&eth;&icirc;&atilde;&icirc; &ccedil;&agrave;&ecirc;&eth;&aring;&iuml;&euml;&aring;&iacute;&ucirc; &atilde;&eth;&oacute;&ccedil;&ucirc; &igrave;&agrave;&ntilde;&ntilde;&agrave;&igrave;&egrave; 1 &ecirc;&atilde; &egrave; 3 &ecirc;&atilde;, &igrave;&icirc;&aelig;&aring;&ograve; &ntilde;&acirc;&icirc;&aacute;&icirc;&auml;&iacute;&icirc;
&acirc;&eth;&agrave;&ugrave;&agrave;&ograve;&uuml;&ntilde;&yuml; &acirc;&icirc;&ecirc;&eth;&oacute;&atilde; &atilde;&icirc;&eth;&egrave;&ccedil;&icirc;&iacute;&ograve;&agrave;&euml;&uuml;&iacute;&icirc;&eacute; &icirc;&ntilde;&egrave;,
&iuml;&eth;&icirc;&otilde;&icirc;&auml;&yuml;&ugrave;&aring;&eacute; &divide;&aring;&eth;&aring;&ccedil; &aring;&atilde;&icirc; &ntilde;&aring;&eth;&aring;&auml;&egrave;&iacute;&oacute;. &Ntilde;&ograve;&aring;&eth;&aelig;&aring;&iacute;&uuml; &iuml;&eth;&egrave;&acirc;&icirc;&auml;&yuml;&ograve; &acirc; &atilde;&icirc;&eth;&egrave;&ccedil;&icirc;&iacute;&ograve;&agrave;&euml;&uuml;&iacute;&icirc;&aring; &iuml;&icirc;&euml;&icirc;&aelig;&aring;&iacute;&egrave;&aring; &egrave; &icirc;&ograve;&iuml;&oacute;&ntilde;&ecirc;&agrave;&thorn;&ograve;. &Ntilde; &ecirc;&agrave;&ecirc;&icirc;&eacute; &ntilde;&egrave;&euml;&icirc;&eacute;
&icirc;&iacute; &aacute;&oacute;&auml;&aring;&ograve; &auml;&aring;&eacute;&ntilde;&ograve;&acirc;&icirc;&acirc;&agrave;&ograve;&uuml; &iacute;&agrave; &icirc;&ntilde;&uuml;, &iuml;&eth;&icirc;&otilde;&icirc;&auml;&yuml;
&acirc;&aring;&eth;&ograve;&egrave;&ecirc;&agrave;&euml;&uuml;&iacute;&icirc;&aring; &iuml;&icirc;&euml;&icirc;&aelig;&aring;&iacute;&egrave;&aring;?
11. &Ograve;&eth;&agrave;&iacute;&ntilde;&ocirc;&icirc;&eth;&igrave;&agrave;&ograve;&icirc;&eth;, &iuml;&icirc;&atilde;&eth;&oacute;&aelig;&aring;&iacute;&iacute;&ucirc;&eacute;
&acirc; &igrave;&agrave;&ntilde;&euml;&icirc;, &acirc;&ntilde;&euml;&aring;&auml;&ntilde;&ograve;&acirc;&egrave;&aring; &iuml;&aring;&eth;&aring;&atilde;&eth;&oacute;&ccedil;&ecirc;&egrave; &iacute;&agrave;&divide;&egrave;&iacute;&agrave;&aring;&ograve; &atilde;&eth;&aring;&ograve;&uuml;&ntilde;&yuml;. &Ecirc;&agrave;&ecirc;&icirc;&acirc; &aring;&atilde;&icirc; &Ecirc;&Iuml;&Auml; (&acirc; &iuml;&eth;&icirc;&ouml;&aring;&iacute;&ograve;&agrave;&otilde;), &aring;&ntilde;&euml;&egrave; &iuml;&eth;&egrave; &iuml;&icirc;&euml;&iacute;&icirc;&eacute; &igrave;&icirc;&ugrave;&iacute;&icirc;&ntilde;&ograve;&egrave;
10 &ecirc;&Acirc;&ograve; &igrave;&agrave;&ntilde;&euml;&icirc; &igrave;&agrave;&ntilde;&ntilde;&icirc;&eacute; 30 &ecirc;&atilde; &iacute;&agrave;&atilde;&eth;&aring;&acirc;&agrave;&aring;&ograve;&ntilde;&yuml; &iacute;&agrave; 20 &deg;&Ntilde; &ccedil;&agrave; 5 &igrave;&egrave;&iacute; &eth;&agrave;&aacute;&icirc;&ograve;&ucirc; &ograve;&eth;&agrave;&iacute;&ntilde;&ocirc;&icirc;&eth;&igrave;&agrave;&ograve;&icirc;&eth;&agrave;? &Oacute;&auml;&aring;&euml;&uuml;&iacute;&agrave;&yuml; &ograve;&aring;&iuml;&euml;&icirc;&aring;&igrave;&ecirc;&icirc;&ntilde;&ograve;&uuml;
&igrave;&agrave;&ntilde;&euml;&agrave; 2000 &Auml;&aelig; &ecirc;&atilde; ⋅ &Ecirc; .
12. &Icirc;&ograve;&eth;&egrave;&ouml;&agrave;&ograve;&aring;&euml;&uuml;&iacute;&icirc; &ccedil;&agrave;&eth;&yuml;&aelig;&aring;&iacute;&iacute;&agrave;&yuml; &divide;&agrave;&ntilde;&ograve;&egrave;&ouml;&agrave; &acirc;&euml;&aring;&ograve;&agrave;&aring;&ograve; &acirc; &icirc;&aacute;&euml;&agrave;&ntilde;&ograve;&uuml; &icirc;&auml;&iacute;&icirc;&eth;&icirc;&auml;&iacute;&icirc;&atilde;&icirc; &igrave;&agrave;&atilde;&iacute;&egrave;&ograve;&iacute;&icirc;&atilde;&icirc; &iuml;&icirc;&euml;&yuml; &ntilde; &egrave;&iacute;&auml;&oacute;&ecirc;&ouml;&egrave;&aring;&eacute;
0,002 &Ograve;&euml;, &atilde;&auml;&aring; &auml;&acirc;&egrave;&aelig;&aring;&ograve;&ntilde;&yuml; &iuml;&icirc; &auml;&oacute;&atilde;&aring; &icirc;&ecirc;&eth;&oacute;&aelig;&iacute;&icirc;&ntilde;&ograve;&egrave; &eth;&agrave;&auml;&egrave;&oacute;&ntilde;&icirc;&igrave; 0,2 &igrave;. &Ccedil;&agrave;&ograve;&aring;&igrave; &divide;&agrave;&ntilde;&ograve;&egrave;&ouml;&agrave; &iuml;&icirc;&iuml;&agrave;&auml;&agrave;&aring;&ograve; &acirc; &yacute;&euml;&aring;&ecirc;&ograve;&eth;&egrave;&divide;&aring;&ntilde;&ecirc;&icirc;&aring; &iuml;&icirc;&euml;&aring;,
&atilde;&auml;&aring; &iuml;&eth;&icirc;&euml;&aring;&ograve;&agrave;&aring;&ograve; &oacute;&divide;&agrave;&ntilde;&ograve;&icirc;&ecirc; &ntilde; &eth;&agrave;&ccedil;&iacute;&icirc;&ntilde;&ograve;&uuml;&thorn; &iuml;&icirc;&ograve;&aring;&iacute;&ouml;&egrave;&agrave;&euml;&icirc;&acirc; 600 &Acirc;, &iuml;&eth;&egrave; &yacute;&ograve;&icirc;&igrave; &aring;&aring; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml; &oacute;&igrave;&aring;&iacute;&uuml;&oslash;&agrave;&aring;&ograve;&ntilde;&yuml; &acirc; 2 &eth;&agrave;&ccedil;&agrave;. &Icirc;&iuml;&eth;&aring;&auml;&aring;&euml;&egrave;&ograve;&aring; &ecirc;&icirc;&iacute;&aring;&divide;&iacute;&oacute;&thorn; &ntilde;&ecirc;&icirc;&eth;&icirc;&ntilde;&ograve;&uuml; (&acirc; &ecirc;&igrave;/&ntilde;) &divide;&agrave;&ntilde;&ograve;&egrave;&ouml;&ucirc;.
&Iuml;&oacute;&aacute;&euml;&egrave;&ecirc;&agrave;&ouml;&egrave;&thorn; &iuml;&icirc;&auml;&atilde;&icirc;&ograve;&icirc;&acirc;&egrave;&euml;&egrave;
&Aacute;.&Iuml;&egrave;&ntilde;&agrave;&eth;&aring;&acirc;&ntilde;&ecirc;&egrave;&eacute;, &Agrave;.&times;&aring;&eth;&iacute;&icirc;&oacute;&ouml;&agrave;&iacute;
&gt;
C
```