Parametric->Rectangular

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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 $xy=1~?$

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