Posted by **Anna** on Monday, August 8, 2011 at 8:39pm.

(a) Modifying the parametric equations of a unit circle, find parametric equations for the ellipse:

x^2/a^2 + y^2/b^2 = 1

(b) Eliminate the parameter to find a Cartesian equation of the curve

x=2sint; y=4+cost; t >(or equal to) 0

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