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If (3)/(2+costheta+isintheta)=a+ib whe...

If `(3)/(2+costheta+isintheta)=a+ib` where `i=sqrt(-1)anda^(2)+b^(2)=lamdaa-3,` the value of `lamda` is

A

3

B

4

C

5

D

6

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