Question

Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.

x = 6 cos t, y = 6 sin t; 0 ≤ t ≤ 2π

Answer 1

use the fact that\[\sin^2t+\cos^2t=1\]

Answer 2

i dont even understand how to begin.

Answer 3

\[x=6\cos t\implies\frac x6=\cos t\]

Answer 4

so (x/6)^2 + (y/6)^2 = 1 ?

Answer 5

yep :)

Answer 6

so then x^2 + y^2 = 6 ?

Answer 7

erm, x^2+y^2=6^2

Answer 8

oooh. thank you

Answer 9

welcome :)