Q.In proving the trigonometric identities such as (cosec?-cot?)2=1-cos?/1+cos?,can we simplify both L.H.S and R.H.S separately to prove it or not?[According to board exams.].

Asked by Ravi consul | 17th Sep, 2012, 11:18: PM

Expert Answer:

Yes, you can do that. You can simplify both LHS and RHS to have the same expression. If you have that, then you can say that LHS = RHS.

Answered by  | 17th Sep, 2012, 11:29: PM

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