Convert to Polar Form...2

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

  1. nycmathguy

    nycmathguy

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    Screenshot_20220311-155742_Samsung Notes.jpg

    IMG_20220319_133348.jpg

    IMG_20220319_133356.jpg
     
    nycmathguy, Mar 19, 2022
    #1
  2. nycmathguy

    MathLover1

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    17. correct
    18. missing one solution
    r^2= 25
    r^2 - 25 = 0
    Thus, (r-5)(r+5)=0
     
    MathLover1, Mar 19, 2022
    #2
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  3. nycmathguy

    nycmathguy

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    The second solution is r = -5.
     
    nycmathguy, Mar 19, 2022
    #3
  4. nycmathguy

    MathLover1

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    yes
     
    MathLover1, Mar 19, 2022
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  5. nycmathguy

    nycmathguy

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    I take no credit for this finding.
     
    nycmathguy, Mar 20, 2022
    #5
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