Question

sin(x)-sin(2x)=12cos(x)+12
Помогите решить​

Answer 1

$\sin(x) - \sin(2x) = 12 \cos(x) + 12$

$\sin(x) - \sin(2x) - 12 \cos(x) + 12 = 0$

$x = = { - 3.141 \: and \: - 3.599 \: and \: -2.684 \: and \: 3.141}$