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1+sinA/cosecA-cotA-1-sinA/cosecA+cotA=2(1+cosA) |
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Answer» Step-by-step EXPLANATION: Solving LHS, 1+sin A / COSEC A - cot A - 1- sin A/ cosec A+cot A (1+sin A)(cosec A+ cot A) - (1-sin A)(cosec A- cot A) / cosec 2 A - cot2 A ......[(a+b)(a-b) =a2- b2] cosec A + cot A + 1 + COS A - cosec A + cot A + 1 - cos A 2 + 2 cot A 2(1+ cot A) = RHS |
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