SOLUTION: Eliminate the parameter. x = 3 cos t, y = 3 sin t

Question 1137703: Eliminate the parameter.
x = 3 cos t, y = 3 sin t
Answer by ikleyn(52818) (Show Source): You can put this solution on YOUR website!
.

x = 3 cos t, 

y = 3 sin t


Square both equations and then add them. You will get


 +  =  +  =  = 9.


Thus finally your equation is


 = 9.     (1)


It is the equation of the circle of the radius 3 units centered at the origin of the coordinate system at (x,y)-coordinate plane.


Thus the parameter  " t "  is just eliminated, and the result is the equation (1).

Solved, explained and completed.

==============

By the way, this your post is a duplicate.

It was posted to the forum 3 - 4 days ago, and I and @greenestamps just answered it.

So, I do not understand what was the meaning of posting it again.

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