Deriving a Reduction Formula

Discussion in 'Geometry and Trigonometry' started by nycmathguy, Dec 26, 2021.

  1. nycmathguy

    nycmathguy

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    Section 5.4

    Screenshot_20211226-014024_Samsung Notes.jpg

    IMG_20211226_175719.jpg

    IMG_20211226_175738.jpg

    Correct?
     
    nycmathguy, Dec 26, 2021
    #1
  2. nycmathguy

    MathLover1

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    66. correct

    graph
    [​IMG]

    68. correct
    [​IMG]
     
    MathLover1, Dec 27, 2021
    #2
    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    nycmathguy, Dec 27, 2021
    #3
  4. nycmathguy

    MathLover1

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    do you see blue and red lines, on top of each other?
    that is a proof
     
    MathLover1, Dec 27, 2021
    #4
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  5. nycmathguy

    nycmathguy

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    I don't have a computer. On my phone screen, the curve looks like one color.
     
    nycmathguy, Dec 27, 2021
    #5
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