Mathematics

Mathematics

Problem

∫(1−cos⁡x)csc⁡2x dx\int (1 - \cos x) \csc^2 x \, dx equals (a) tan⁡x2+c\tan \frac{x}{2} + c (b) cot⁡(x2)+c\cot \left( \frac{x}{2} \right) + c (c) 12tan⁡x2+c\frac{1}{2} \tan \frac{x}{2} + c (d) 2tan⁡x2+c2 \tan \frac{x}{2} + c

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