Editor
Editor
 Sep 18, 2022
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$\int \frac{x}{\sqrt{4+x^{2}}}dx$ 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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NETNUST Entry TestMathematicsIntegration