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followmytwitter

  • one year ago

rewrite with only sin x and cos x sin 2x- cos x help?

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  1. itsmylife
    • one year ago
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    sin2x=2 sin x * cos x put it in there and get the results ;)

  2. followmytwitter
    • one year ago
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    wait so I plug in for x

  3. followmytwitter
    • one year ago
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    @itsmylife

  4. followmytwitter
    • one year ago
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    the sin2x

  5. itsmylife
    • one year ago
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    no put sin 2x = sinx * cos x

  6. followmytwitter
    • one year ago
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    2 sinx - cos^2x?

  7. followmytwitter
    • one year ago
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    @itsmylife

  8. itsmylife
    • one year ago
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    nope

  9. followmytwitter
    • one year ago
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    hmmm

  10. itsmylife
    • one year ago
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    2 sinx cos x - cos x cos x (2 sin x -1)

  11. followmytwitter
    • one year ago
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    oh sweet thx

  12. itsmylife
    • one year ago
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    np ;)

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