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If sin(alpha + beta) = 1,sin(alpha - bet...

If `sin(alpha + beta) = 1`,`sin(alpha - beta) = 1/2`, then : `tan(alpha + 2beta)tan(2alpha + beta)` is equal to :

A

1

B

`-1`

C

zero

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
A
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