यदि x + 1/x = 5 है, तो x^(3) + 1/x^(3) ...

यदि `x + 1/x = 5` है, तो `x^(3) + 1/x^(3)` बराबर है-

A

`3sqrt(5)`

B

`5sqrt(5)`

C

`2sqrt(5)`

D

`4sqrt(5)`

Verified by Experts

The correct Answer is:

C

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