Editor
Editor
 Sep 18, 2022
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$\frac{\text{d}}{\text{d}x}(\sqrt{x} -\frac{1}{\sqrt{x}})^{2}$=
Difficulty: Easy
A: 
$2x^{2}-1$
B: 
$1-x^{2}$
C: 
$\frac{x^{2}-1}{x^{2}}$
D: 
$1+x^{2}$
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NETNUST Entry TestMathematicsDifferentiation