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Let z=costheta+isintheta. Then the value...

Let `z=costheta+isintheta`. Then the value of `sum_(m->1-15)Img(z^(2m-1))` at `theta=2^@` is:

A

`(1)/(sin 2^(@))`

B

`(1)/(3sin 2^(@))`

C

`(1)/(sin 2^(@))`

D

`(1)/(4sin 2^(@))`

Text Solution

Verified by Experts

The correct Answer is:
D
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