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:
