Mark against the correct answer in each of the following:

Question:

Mark $(\sqrt{)}$ against the correct answer in each of the following:

$\int \frac{\mathrm{dx}}{(1-\cos x)}=?$

A. $\frac{1}{(x-\sin x)}+C$

B. $\log |x-\sin x|+C$

C. $\log \left|\tan \frac{x}{2}\right|+C$

D. $-\cot \frac{x}{2}+C$

Solution:

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