Homework Help: calculus

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

calculus - drwls, Monday, August 8, 2011 at 9:16pm
(a) x = a sint y = b cost

(b) (x)^2/4 + (y-4)^2 = 1
calculus - julia, Tuesday, August 9, 2011 at 7:52am
can you explain how you got both answers?

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