Question

Най­ди­те зна­че­ние вы­ра­же­ния ​

Answer 1

Ответ:

а) -0,5

б) -1

...........

Answer 2

$\bf \sin( - \dfrac{\pi}{6} ) = - \sin( \dfrac{\pi}{6} ) = - \dfrac{1}{2} = - 0.5 \\ \bf tg( - \dfrac{\pi}{4} ) = - tg( \dfrac{\pi}{4} ) = - 1$