Question

i need your help! about parametric equations.

Answer 1

explain this topic to me pls..

Answer 2

equations that are parametric

Answer 3

ni mean hw to obtain the parametric eq from cartesian

Answer 4

yes

Answer 5

I think you can come up with lots of different parametric equations for the same set of cartesian equations. And I think it is not always obvious how to get a "nice" parametric equation.

You can do this
http://jccc-mpg.wikidot.com/parametric-equations

But the other thing you can do is study/memorize the solutions people have devised for various curves. Example: http://www.mathopenref.com/coordparamellipse.html

Another trick: if you are given a parametric equation and are asked how to get it, you can try to work backward.

Answer 6

@phi thank you so much ha :)