Cos^2x=sin^2x All I need is help -.-

Question

Cos^2x=sin^2x
All I need is help -.-

Answer 1

Cos²x = Sin²x
Cos²x - Sin²x = 0
Cos2x = 0
2x = П/2 + Пn, n э z
x = П/4 + Пn/2, n э z