यदि cos^(2) alpha - sin^(2) alpha = tan^...

यदि `cos^(2) alpha - sin^(2) alpha = tan^(2)beta` है, तो `cos^(2)beta - sin^(2)beta` का मान है-

A

`cot^(2) alpha`

B

`cot^(2)beta`

C

`tan^(2)alpha `

D

`tan^(2)beta`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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