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find the 2nd derivative of xy+y^2=4 HELP?
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by Jim287 at March 07, 2011

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use the product rule and implicit derivative xdy/dx+y+2ydy/dx=0 xd^2y/dx^2+dy/dx+dy/dx+2yD^2y/dx^2+dy/dx+2dy/dx Then simplify

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chitra003 March 08, 2011