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If tan A = tan alpha tanh beta, tan B = ...

If tan A = tan `alpha` tanh `beta`, tan B = cot `alpha` tanh `beta`, then tan (A + B) =

A

sinh `2 beta cos 2 alpha`

B

sinh `2 beta` cosec ` 2 alpha`

C

cosh `2 beta` sec ` 2 alpha`

D

cosh ` 2 beta` tan `2alpha`

Text Solution

Verified by Experts

The correct Answer is:
B
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