A Level

MATHEMATICS · Single correct · A Level · Mathematics · Integration · Integration

Problem

39.

\int \frac{d x}{\sin ^{2} x \cos ^{2} x}

equals (A)

\tan x+\cot x+\mathrm{C}

(B)

\tan x-\cot x+\mathrm{C}

(C)

\quad \tan x \cot x+\mathrm{C}

(D)

\tan x-\cot 2 x+\mathrm{C}