Question

На фотке. Плиз, помогите

Answer 1

1.
= 2sin8a
2.
= cos14a
3.
= tg6a
4.
= sin30° = 1/2
5.
= cos6a
6.
= 2sin²6a
7.
= cosa*cosa = cos²a
8.
= cosπ/3 = 1/2
9.
= (1+cos6x)/2

Answer 2

спасибо, просто выручил)

Answer 3

Удачи!!)