Prove that cot A + cosec A- 1/ cot A - cosec A + 1 = 1+ cos A / 1 + sin A

Prove that cot A + cosec A- 1/ cot A - cosec A + 1 = 1+ cos A / 1 + si

1.	Prove that cot A + cosec A- 1/ cot A - cosec A + 1 = 1+ cos A / 1 + sin A
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