E
Editor
Sep 18, 2022
$\int \tan^{-1}x dx$ is equal to:
Difficulty: Easy
A:
$\frac{tan^{-1}x}{x}+ln\sqrt{1+x^{2}}$
B:
$\frac{tan^{-1}x}{x}-ln\sqrt{1+x^{2}}$
C:
$x\tan^{-1}x+ln\sqrt{1+x^{2}}$
D:
$x\tan^{-1}x+\frac{1}{ln(1+x^{2})}.2$
ID: 63273db9ca83163ac3a10c77