Homework Statement
Use implicit differentiation to find dy/dx if y - sin(xy) = x^2.
What I've got is dy/dx y - cos(xy)(y+x dy/dx) = 2x
I don't know what I did and I don't know where to go from here.
Homework Statement
A curve is defined parametrically by x=sin3t, y=cos3t, 0≤ t ≤ 2pi. Find the equation of the line tangent to the curve at the point defined by t=2pi/9.
Homework Equations
The Attempt at a Solution
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