Question

calcule o valor das seguintes expressões
$( \frac{1}{3 } + \frac{1}{4} ) {}^{2} .( \frac{5}{10} ) {}^{2} =$
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Answer 1

$(\frac{1}{3}+\frac{1}{4})^2.(\frac{5}{10})^2=$

$(\frac{4}{12}+\frac{3}{12})^2.\frac{25}{100}=$

$(\frac{7}{12})^2.\frac{1}{4}=$

$\frac{49}{144}.\frac{1}{4}=$

$\frac{49}{576}$