Cos A /1 _ tan A + sinA/ 1 _ cot a is equal to Sin A + Cos A
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Answer:
- cosA/1-tanA+sinA/1-cotA
- cosA/1-sinA/cosA + sinA/1-cosA/sinA
- cosA/cosA-sinA/cosA + sinA/sinA-cosA/sinA
- cos^2A/cosA-sinA + sin^2A/sinA-cosA
- cos^2A-sin^2A/cosA-sinA
- (cosA-sinA)(cosA+sinA)/cosA-sinA
- cosA+sinA
- LHS=RHS
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