यदि xn=cos(pi/4^n)+isin((pi)/4^n) , तब x...

यदि `x_n=cos(pi/4^n)+isin((pi)/4^n) `, तब `x_(1).x_(2).x_3 ...oo` का मान है:

A

`(1+isqrt3)/2`

B

`(-1+isqrt3)/2`

C

`(1-isqrt3)/2`

D

`(-1-isqrt3)/2`

Verified by Experts

The correct Answer is:

A

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