Mark against the correct answer in each of the following:

Question:

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

$\int \sin ^{3} x d x=?$

A. $-\frac{3}{4} \cos x+\frac{\cos 3 x}{12}+C$

B. $\frac{3}{4} \cos x+\frac{\cos 3 x}{12}+C$

C. $-\frac{3}{4} \cos x-\frac{\cos 3 x}{12}+C$

D. none of these

Solution:

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