Posted by Albert on Thursday, June 21, 2012 at 1:50pm.
find dy/dx by implicit differentiation
a) xy + x^5y^2 + 3x^3  4 = 1
b) lny = cos x
thank you

Calculus grade 12  Maya, Thursday, June 21, 2012 at 2:03pm
dy/dx = (1y)+ (x)dy/dx + 5x^4y^2 + 2x^5y(dy/dx) + 9x^2
y  5x^4y^2  9x^2 = x(dy/dx) + 2x^5y (dydx)
(y 5x^4y^2 9x^2)/ (x + 2x^5y) = dy/dx

Calculus grade 12  Albert, Thursday, June 21, 2012 at 2:06pm
hi, is that all for a? please let me know, thank you Maya
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