Question

prove that cot A - cosA/cotA+cosA=cosecA-1/cosecA+1​

Answer 1

Answer:

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Answer 2

Answer:Lhs = (cotA - cosA)/(cotA+cosA)=(cosA/sinA - cosA)/(cosA/sinA + cosA)=cosA(1/sinA - 1)/cosA(1/sinA + 1)= (1/sinA -1)/(1/sinA+1)=(cosecA-1)/(cosecA+1) since 1/sinA= cosecA=rhs

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