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If sec theta=3x and tan theta=3/x, (x ne...

If `sec theta=3x` and `tan theta=3/x`, (x ne 0)` then the value of `9(x^2-1/x^2)` is:
यदि `sec theta=3x` और `tan theta=3/x`, है जहाँ `(x ne 0)` है, तो `9(x^2-1/x^2)` का मान ज्ञात करें |

A

`1/2`

B

`1/3`

C

1

D

`1/4`

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