Sin^2x/4-cos^2x/4=1 Решите

Question

Sin^2x/4-cos^2x/4=1 Решите

Answer 1

Sin²x/4-cos²x/4=1
cos(2*x/4)=1
cos(x/2)=1
cos(x/2)=cos(π/2)
x/2=π/2
x=π ====>ответ☺