Question

Помогите с решением)
cos(3П/4 -2х) = -1

Answer 1

$cos(frac{3pi}{4}-2x)=-1\frac{3pi}{4}-2x=pi+2pi n;in Z\-2x=frac{pi}{4}+2pi n;nin Z\x=-frac{pi}{8}-pi n;nin Z$