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Let cos(alpha+beta)=4//5and let sin(al...

Let `cos(alpha+beta)=4//5and` let `sin(alpha-beta)=5//13` , where `0lealpha,betalepi//4`. Then `tan2alpha` is equal to

A

a) `(20)/(7)`

B

b) `(25)/(16)`

C

c) `(56)/(33)`

D

d) `(19)/(12)`

Text Solution

Verified by Experts

The correct Answer is:
C
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