यदि cosec theta + cot theta=m, तब cos th...

यदि `cosec theta + cot theta=m`, तब `cos theta` का मान है-

A

इनमे से कोई नहीं

B

`(m^(3)-1)/(m^(3)+1)`

C

`(m^(2)+1)/(m^(2)-1)`

D

`(m^(2)-1)/(m^(2)+1)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

D

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