How I will know that which identity at which step I have to use for trignomeric proofs.provide me some tricks to solve them.

Asked by mmishra73.gkp | 28th Jun, 2015, 11:19: AM

Expert Answer:

Dear mmishra73.gkp@gmail.com

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Answered by Vimala Ramamurthy | 28th Jun, 2015, 12:31: PM