E
Editor
Sep 18, 2022
$\int \frac{x}{\sqrt{4+x^{2}}}dx$ is equal to
Difficulty: Easy
A:
$\frac{2}{\sqrt{4+x^{2}}}$
B:
$2\sqrt{4+x^{2}}$
C:
$\frac{\sqrt{4+x^{2}}}{2}$
D:
$\sqrt{4+x^{2}}$
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ID: 63273db9ca83163ac3a10b4b