यदि 1/(1 + cos A) + 1/(1 - cos A) = x, त...

यदि `1/(1 + cos A) + 1/(1 - cos A) = x`, तो `x` का क्या मान है ?

A

`2 sec^2 A`

B

`2 cosec A`

C

`2 cosec^2 A`

D

`2 secA`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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