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Show that : 2\ tan^(-1){tanalpha/2tan(pi...

Show that : `2\ tan^(-1){tanalpha/2tan(pi/4-beta/2)}=tan^(-1)((sinalphacosbeta)/(cosalpha+sinbeta))` .

A

`tan^(-1)((cosalpha-sinbeta)/(sinalphacosbeta))`

B

`tan^(-1)((sinalphacosbeta)/(cosalpha+sinbeta))`

C

Both (1) & (2)

D

`tan^(-1)((tanalphatanbeta)/(tanalpha+tanbeta))`

Text Solution

Verified by Experts

The correct Answer is:
B
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