indefinite-integration

Question: $\int_{{}}^{{}}{\frac{\text{cosec}\theta -\cot \theta }{\text{cosec}\theta +\cot \theta }}\ d\theta =$



1) $2\text{cosec}\theta -2\cot \theta -\theta +c$
2) $2\,\text{cosec}\theta -2\cot \theta +\theta +c$
3) $2\,\text{cosec}\theta +2\cot \theta -\theta +c$
4) None of these
Solution: Explanation: No Explanation
Fundamental integration

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