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Single Variable Calculus

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Implicit Differentiation of a Circle

SVCALC-10I8G0

Find $y'$ for the function $x^2+y^2=4$.

A

$y'=-\cfrac{y}{x}$

B

$y'=\cfrac{x}{y}$

C

$y'=-\cfrac{x}{y}$

D

$y'=-2x2y$