# Thread: find an equation in x and y whose graph is the path of the particle

1. ## find an equation in x and y whose graph is the path of the particle

r(t) = cos(2t) + 3sin(2t) t=0

2. Is it $r(t) = \cos 2t + 3t \sin 2t$?

3. nope r(t) = cos(2t)i + 3sin(2t)j t=0

4. Let $x = \cos 2t$ and $y = 3t
\sin 2t$
.