Question:
Mark $(\sqrt{)}$ against the correct answer in each of the following:
$\int \frac{\left(\sin ^{3} x+\cos ^{3} x\right)}{\sin ^{2} x \cos ^{2} x} d x=?$
A. $\sin x-\cos x+C$
B. $\tan x-\cos x+C$
C. $\sec x-\operatorname{cosec} x+C$
D. None of these
Solution:
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