Question

СРОЧНО ДАЮ 50 БАЛЛОВ
Решите уравнение 2sin^2(x-п/3)+cos(x-п/3)-1=0

Answer 1

Х = П/2 + 2Пп; х= 2Пп, п Є Z 

Answer 2

cosx=k3/2

x=p/6+2pk

cosx=k3/2

x=p/6+2pk

sin(2x-p/3)=-1

2x-p/3=-p/2+2pn

2x=-p/6+2pn

x=-p/12+pn