E
Editor
Sep 18, 2022
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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ID: 63273db8ca83163ac3a100ef