Помогите решить 4sin^2x/2-1=0
(2sinx/2-1)(2sinx/2+1)=0 sinx/2=1/2 U sinx/2=-1/2 x/2=π/6+2πk x/2=5π/6+2πk x/2=-π/6+2πk x/2=-5π/6+2πk x=π/3+4πk x=5π/3+4πk x=π/3+4πk x=5π/3+4πk ,k∈z