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If a=x+1/x, " then "x^(3)+x^(-3)=...

If `a=x+1/x, " then "x^(3)+x^(-3)=`

A

`a^(3)+3a`

B

`a^(3)-3a`

C

`a^(3)+3`

D

`a^(3)-3`

Text Solution

Verified by Experts

The correct Answer is:
B
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