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December 21, 2014

December 21, 2014

Posted by **Cole** on Saturday, February 23, 2013 at 6:02pm.

x^4 + x^3y + 4y^2 = 7

x cos y + y cos x = 1

- calculus -
**Steve**, Saturday, February 23, 2013 at 6:54pm4x^3 + 3x^2y + x^3 y' + 8y y' = 0

y'(x^3 + 8y) = -x^2 (4x+3y)

y' = -x^2 (4x+3y) / (x^3 + 8y)

do the other likewise and simplify

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