Question

СРОЧНО! ДАЮ 100 БАЛЛОВ!
${ \cos(?) }^{?}$
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Answer 1

Ответ:

$2 \frac{2}{5} \times 1 \frac{1}{4} = \frac{12}{5} \times \frac{5}{4} = \frac{ {12}^{3} }{ {5}^{1} } \times \frac{ {5}^{1} }{ {4}^{1} } = 3$

$4 \frac{1}{2} \times 1 \frac{1}{9} = \frac{9}{2} \times \frac{10}{9} = \frac{ {9}^{1} }{ {2}^{1} } \times \frac{ {10}^{5} }{ {9}^{1} } = 5$