Prove the following :

Asked by Ishan Khanna | 15th Jul, 2010, 10:17: PM

Expert Answer:

The answer to your question is :
Cot 4x (Sin 5x + Sin 3x)
= Cot 4x ( 2 Sin 4x Cos x)

Answered by  | 15th Jul, 2010, 10:44: PM

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