If z= costheta+isintheta , then the valu...

If `z= costheta+isintheta` , then the value of `(z^(2n)-1)/(z^(2n)+1)` (A) `i tan n theta` (B) ` tan n theta` (C) `icot n theta` (D) `-i tan n theta`

A

`icot n theta`

B

`I tan n theta`

C

`tan n theta`

D

`cot n theta`

Verified by Experts

The correct Answer is:

B

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