How would I go about finding the derivative of x(adsbygoogle = window.adsbygoogle || []).push({}); ^{2}+ y^{2}= 36.

I know it is a circle with radius 6. Is there a better way to find the derivative then:

y^{2}= 36 - x^{2}

y = (36 - x^{2})^{1/2}

y = 1/2(36 - x^{2})^{-1/2}(-2x)

y^{'}= -x/(36-x^{2})^{1/2}

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# Homework Help: Differentiating a circle

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