If 0 lt alpha , beta lt pi//4, cos ( al...

If `0 lt alpha , beta lt pi//4, cos ( alpha + beta )=4//5 , sin (alpha - beta) =5//13 " then " tan 2alpha =`

A

`33/56`

B

`56/33`

C

`16/63`

D

`14/63`

Verified by Experts

The correct Answer is:

B

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