Question

cos(2x-П/3)=-1

помогите

Answer 1

$cos(2x-frac{pi}{3})=-1\ 2x-frac{pi}{3} =pi+2pi n\ 2x=pi+frac{pi}{3}+2pi n\ 2x=frac{4pi}{3}+2pi n\ x=frac{4pi}{6}+pi n$

где n ∈ Z