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If z = (1+cos theta + i sin theta)/(sin ...

If `z = (1+cos theta + i sin theta)/(sin theta + i(1+cos theta))(0 lt theta lt pi//2)` then |z| equals

A

`2 |sin theta|`

B

`2 |cos theta|`

C

1

D

`|cot (theta//2)|`

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The correct Answer is:
C
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