Absolutely lost on this:

r=8cotx (x should be in degrees).

I tried converting this (as well as others) but I seem to just get nowhere after I turned cot into cosx/sinx.

Thanks.

Edit: The equation above should be converted to rectangular form.

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- March 17th 2009, 09:49 PMCheaglesConverting polar coordinates.
Absolutely lost on this:

r=8cotx (x should be in degrees).

I tried converting this (as well as others) but I seem to just get nowhere after I turned cot into cosx/sinx.

Thanks.

Edit: The equation above should be converted to rectangular form. - March 18th 2009, 12:16 AMmr fantastic
- March 18th 2009, 04:57 AMHallsofIvy
I think I would have done this a slightly different way:

so

Multiplying on both sides of the equation by r,

and

Now squaring both sides will give what Mr. fantastic got.