Question

va rog repede, ex.11 C​

Answer 1

Răspuns:

$= \frac{23-2}{9} *\frac{\sqrt{81} }{\sqrt{784} } +\sqrt{\frac{1296}{100}} :\sqrt{\frac{36}{100} } -\sqrt{\frac{1024}{10000} } :\sqrt{\frac{64}{100} } =$

$= \frac{21}{9} *\frac{9}{28} +\frac{\sqrt{1296}}{\sqrt{100}}} *\frac{\sqrt{100}}{\sqrt{36}} } -\frac{\sqrt{1024}}{\sqrt{10000}} }*\frac{\sqrt{100}}{\sqrt{64}} } =$

$= \frac{21}{28} +\frac{36}{10} *\frac{10}{6} -\frac{32}{100}*\frac{10}{8} =$

$= \frac{3}{4} +6 -\frac{4}{10} =$

$= \frac{3*5 + 6*20-4*2}{20}=$

$= \frac{127}{20}=6,35$

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