Identities

Asked by siddhanth | 3rd Jul, 2013, 08:29: PM

Expert Answer:

Please ask one question at a time. The answer to your first question is as follows:
 
LHS
= cos ^2A/cosA -  sin A + sin^2 A/sinA-cos A
= cos ^2A - sin^2 A/cosA -  sin A
= (cosA - sinA)(cosA + sinA)/cosA -  sin A
= cos A + sinA
= RHS

Answered by  | 3rd Jul, 2013, 10:50: PM

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