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If alpha+beta=90^(@),alpha=2beta, then f...

If `alpha+beta=90^(@),alpha=2beta`, then find the value of `cos^(2)alpha+sin^(2)beta`.

A

`1/5`

B

`1/3`

C

`1/2`

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
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