Mark against the correct answer in each of the following:

Question:

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

$\int x \sin 2 x d x=?$

A. $\frac{1}{2} \mathrm{x} \cos 2 \mathrm{x}+\frac{1}{4} \sin 2 \mathrm{x}+\mathrm{C}$

B. $-\frac{1}{2} x \cos 2 x-\frac{1}{4} \sin 2 x+C$

C. $-\frac{1}{2} x \cos 2 x+\frac{1}{4} \sin 2 x+C$

D. none of these

Solution:

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