If sin (B)=3 sin (2A+B)

Prove that 2 tan A+tan(A+B)=0

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- May 24th 2011, 10:31 AMayushdadhwalGiven sin (B)=3 sin (2A+B), prove 2 tan A+tan(A+B)=0.
If sin (B)=3 sin (2A+B)

Prove that 2 tan A+tan(A+B)=0 - May 24th 2011, 02:52 PMpickslides
A suggestion:

Use on the right hand side.