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Math Help - Find the Polar Coordinates...

  1. #1
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    Find the Polar Coordinates...

    (-5,12) are the rectangular coordinates of a point. Find two pairs of polar coordinates (r,A) for each point, on with r>0 and one with r<0. Express A in radians. Please help! please explain process and answer, im working on a similar problem with a tutor and she is not very much help.

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  2. #2
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    Re: Find the Polar Coordinates...

    r= \sqrt{x^2+ y^2} and \theta= tan^{-1}\left(\frac{y}{x}\right). "Negative r" would be unusual notation but you would just add or subtract \pi from the angle, A.
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