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If x+(1)/(x)=2costheta, then x^(n)+(1)...

If `x+(1)/(x)=2costheta`, then `x^(n)+(1)/(x^(n))` is equal to

A

`2cosntheta`

B

`2sinntheta`

C

`cosntheta`

D

`sinnetheta`

Text Solution

Verified by Experts

The correct Answer is:
A
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