Question

Eliminate the parameter.

x = 4 cos t, y = 4 sin t

Answer 1

Try squaring both sides.

Answer 2

x^2+y^2=16

Answer 3

you have gone from polar equations to a cartesian equation by eliminating t

Answer 4

\[x^2 = 4\cos^2(t) ----- y^2=4\sin^2(t) \]

Answer 5

is that it?

Answer 6

yes you elimiate t to form a cartesian equation involving just x and y