Question

the general solution of cos^2theta=0.5 is

Answer 1

cos^2 theta = 1/2
cos theta = 1/√2
cos theta = cos 45°
theta = 45°
Hope it helped you....

Answer 2

Hey mate! cos²theta=0.5
=1/2(0.5)
cos²theta=1/2
cos theta=1/√2
and we know that cos 45°=1/√2
so the answer is 45°