# Parametric->Rectangular

Printable View

• September 10th 2012, 06:07 AM
Greymalkin
Parametric->Rectangular
Find the equivalent rectangular equation:

$x=sec(t)$
$y=cos(t)$
$\frac{-\pi}{2}\le t \le\frac{\pi}{2}$

Also, do circle/elliptical parameters always remain between $0\le y \le 2\pi$??? It seems like they do but I feel I am not seeing the whole picture in gestalt.
• September 10th 2012, 06:15 AM
Plato
Re: Parametric->Rectangular
Quote:

Originally Posted by Greymalkin
Find the equivalent rectangular equation:
$x=sec(t)$
$y=cos(t)$
$\frac{-\pi}{2}\le t \le\frac{\pi}{2}$

Is it true that $xy=1~?$