यदि alpha + beta = 90^(@) हो, तो (1- sin...

यदि `alpha + beta = 90^(@)` हो, तो `(1- sin^(2) alpha) (1 - cos^(2)alpha) xx (1 + cot^(2)beta) (1 + tan^(2) beta)` का मान कितना होगा ?

A

1

B

`-1`

C

0

D

2

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

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