Posted by **Katy** on Monday, May 31, 2010 at 2:16pm.

Use implicit differentiation to find dy/dx if cos xy = 2x^2 - 3y.

I'm stuck on this problem because I'm getting thrown off on how to factor this. Here's my work so far:

-{[(dy/dx)y + y]sin xy} = 4x - 3(dy/dx)

-{[(dy/dx)y + y]sinxy} + 3(dy/dx) = 4x

...now what?

Thx

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