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If (1+costheta-isintheta)(1+cos2theta+is...

If `(1+costheta-isintheta)(1+cos2theta+isin2theta)=x+iy` then `x^2+y^2` =

A

`16 cos^2thetasin^2(theta//2)`

B

`16 sin^2thetacos^2(theta//2)`

C

`16 sin^2thetasin^2(theta//2)`

D

`16 cos^2thetacos^2(theta//2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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