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2 sin^(2) beta + 4 cos( alpha+ beta) sin...

`2 sin^(2) beta + 4 cos( alpha+ beta) sin alpha sin beta + cos ( 2 alpha + 2 beta )=`

A

`sin2alpha`

B

`cos2alpha`

C

`tan2alpha`

D

`cot2alpha`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-MULTIPLE & SUBMULTIPLE ANGLES-EXERCISE-II
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