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January 28, 2015

January 28, 2015

Posted by **akash** on Friday, March 22, 2013 at 8:29pm.

x^3 + y^3 = 14xy, (7, 7)

- calculus -
**bobpursley**, Friday, March 22, 2013 at 8:51pmfind dy/dx at (7.7)

3x^2 dx+3y^2 dy=14(ydx+xdy)

dy/dx(3y^2-14x)=14y-3x^2

check that, I did the algebra in my head.

dy/dx= 108-147 / 147-98

check that, it was in my head also.

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