Mark against the correct answer in each of the following:

Question:

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

$\int x \cot ^{2} x d x=?$

A. $-x \cot x+\frac{x^{2}}{2}+\log |\sin x|+C$

B. $-x \cot x-\frac{x^{2}}{2}+\log |\sin x|+C$

C. $-x \cot x+\frac{x^{2}}{2}-\log |\sin x|+C$

D. none of these

Solution:

 

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