Editor
Editor
 Sep 18, 2022
0
If $y=\frac{1}{x^{2}}$ then dy/dx equals:
Difficulty: Easy
A: 
-2x
B: 
$x^{-3}$
C: 
$-\frac{2}{x^{3}}$
D: 
$-2x^{3}$
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NETNUST Entry TestMathematicsDifferentiation