Question

20 БАЛЛОВ!!! СРОЧНО!!! ​

Answer 1

Ответ:

1). =4

2). = 1,5

Пошаговое объяснение:

$\frac{ {16}^{ - 0.5} \times {64}^{ \frac{4}{5} } }{ (\sqrt[5]{4})^{2}} = \frac{ {( {2}^{4})}^{ - 0.5} \times {( {2}^{6}) }^{ \frac{4}{5} } }{ {( {2}^{ \frac{2}{5}})}^{2}} = \frac{ {2}^{4 \times ( - 0.5}) \times {2}^{6 \times \frac{4}{5}}}{ {2}^{ \frac{2}{5} \times 2 } } = \frac{ {2}^{ - 2 + \frac{24}{5} } }{ {2}^{ \frac{4}{5} } } = {2}^{ - 2 + \frac{24}{5} - \frac{4}{5}} = {2}^{ - 2 + \frac{20}{5} } = {2}^{2} = 4$

$15 - 15 \times {cos}^{2} x = 15 \times (1 - {cos}^{2} x) = 15 \times {sin}^{2} x$

при

$sinx = 0.1$

$15 \times sinx \\ 15 \times 0.1 = 1.5$