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February 1, 2015

February 1, 2015

Posted by **Rainie** on Wednesday, November 12, 2008 at 6:06pm.

dy/dx=(4x-2xy)/(x^2+y^2+1)

a) write an equation of each horizontal tangent line to the curve

b) the line through the origin with the slope .1 is tangent to the curve at P. Find x and y of point P.

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