If cos(alpha+beta)=4/5, sin(alpha-beta)=...

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

A

`(16)/(63)`

B

`(56)/(33)`

C

`(28)/(33)`

D

None of these

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The correct Answer is:

B

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