Directions are simple either convert from polar to Cartesian or vice versa...

[snip]

2.

http://www.mathhelpforum.com/math-he...b9101739-1.gif
I got it to...

http://www.mathhelpforum.com/math-he...c8f6b112-1.gif
But that doesn't seem right, so there's probably something obvious I'm missing.

Also, as intuitive as it seems

$\displaystyle \theta = \frac{\pi}{2}$ and $\displaystyle \theta = \frac{3\pi}{2}$ are both $\displaystyle x = 0$

$\displaystyle \theta = \pi$ and $\displaystyle \theta = 0$ are both $\displaystyle y = 0$

Thanks for the help.