यदि sec theta = 3x और tan theta = (3)/(x...

यदि `sec theta = 3x` और `tan theta = (3)/(x), (x ne 0)` है , तो `9(x^(2) - (1)/(x^(2)))` का मान है :

A

`(1)/(2)`

B

`(1)/(3)`

C

1

D

`(1)/(4)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

D

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