Calculus

how to convert this from rectangular to polar?


r=cos theta

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asked by Josh
  1. remember the formulas I gave you in your last post regarding this ?

    r = √(x^2 + y^2) and x = rcosØ

    so r = cosØ is
    r = x/r
    r^2 = x
    x^2 + y^2 = x

    which is the equation of a circle.

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    posted by Reiny

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