MCQ
The value of $\int \frac{1}{\sin ^2 x \cdot \cos ^2 x} d x$ is
  • A
    $\sec x+\tan x+c$
  • B
    $\sin x+\cos x+c$
  • C
    $0$
  • $\tan x-\cot x+c$

Answer

Correct option: D.
$\tan x-\cot x+c$
$\tan x-\cot x+c$

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