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what is the trick to use trignometric identities in proves of trignometric problems????????

Asked by mkcsamu74 23rd July 2015, 9:24 PM
Answered by Expert

It depends on the proof at hand. 

it's always helpful to keep the RHS in mind if you are starting with the LHS of the statement (sometimes it is easier to start from RHS and prove it to be equal to LHS).

Use the identities which will help you to make the expression closer and closer to what you want to prove. 

Hope this helps.

Answered by Expert 3rd August 2015, 1:08 PM
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