Решите неравенство Cos(p/6-2x)=1

Question

Решите неравенство
Cos(p/6-2x)=1

Answer 1

1)
Pi/6-2x=-pi-pi*2n, 2x=2pi*n+pi+pi/6, x=pi*n+7/12*pi, n=...,-2.-1,0,1,2,...