Convert to Rectangular Form...4

Discussion in 'Geometry and Trigonometry' started by nycmathguy, Mar 19, 2022.

  1. nycmathguy

    nycmathguy

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    Question 7

    r = 2 cos θ

    Multiply both sides by r.

    r • r = 2 r cos θ

    r^2 = 2x

    x^2 + y^2 = 2x

    x^2 + y^2 - 2x = 0

    You say?
     
    nycmathguy, Mar 19, 2022
    #1
  2. nycmathguy

    MathLover1

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    correct
     
    MathLover1, Mar 19, 2022
    #2
    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    Again


    Again, why did you not solve for y in this example?
     
    nycmathguy, Mar 19, 2022
    #3
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