Question

Help on parametric equation. Just need to eliminate it.
x = 2cos(theta), y = 1 + sin(theta)

this would prolly be in x^2 + y^2 = 1
but I dunno how.

Answer 1

x=2cos(theta) => cos(theta)=...
y=1+sin(theta) => sin(theta)=...
Now use the familiar identity: (cos(theta))^2+(sin(theta))^2=1 to arrive at the answer.

Answer 2

ok cool. thanks.