यदि x^(4)+(1)/(x^(4))=47, तो x+(1)/(x) क...

यदि `x^(4)+(1)/(x^(4))=47,` तो `x+(1)/(x)` का मान है

A

3

B

`-3`

C

`pm 3`

D

4

लिखित उत्तर

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The correct Answer is:

C

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