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

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

A

`xtan(3theta//2)`

B

`xtan(5theta//2)`

C

`xtan(7theta//2)`

D

`xtan(9theta//2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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