prove the question 1 -cos A/1+cosA = (cot A - cosec A) power2
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Answer:
your question may be 1-cosA/1+cosa=(cosecA-cotA)²
proof: R.H.S
(cosecA-cotA)²
=(1/sinA-cosA/sinA)²
=(1-cosA/sinA)² (LCM)
=(1-cosA)²/sin²A
=(1-cosA)(1-cosA)/1-cos²A
=(1-cosA)(1-cosA)/(1-cosA)(1+cosA)
=1-cosA/1+cosA
=LHS (proved)
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