यदि 2sin((pix)/(2))=x^(2)+(1)/(x^(2)) ह...

यदि `2sin((pix)/(2))=x^(2)+(1)/(x^(2))` है तो `(x-(1)/(x))` का मान ज्ञात करे?

A

`-1`

B

2

C

1

D

0

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A

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