If tanA=tan alpha tanh beta and tanB=cot...

If `tanA=tan alpha tanh beta and tanB=cot alpha tan h beta ` then `tan(A+B)=`

A

`sin h(2 beta)cos 2 alpha`

B

`sin h(2 beta) " cosec " (2 alpha)`

C

`cos h (2 beta) sec 2 alpha`

D

`cos h (2 beta) sin 2 alpha`

Verified by Experts

The correct Answer is:

B

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