underset(alphatobeta)(lim)[(sin^(2)alpha...

`underset(alphatobeta)(lim)[(sin^(2)alpha-sin^(2)beta)/(alpha^(2)-beta^(2))]` is equal to

A

0

B

1

C

`"sin"beta//beta`

D

`"sin"2beta//2beta`

Verified by Experts

The correct Answer is:

D

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