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Differential equations help?

How do I solve this differential equation using separation of variables?

Am I suppose to plug in the zeros for t and s?

ds/dt = sec(s); t = 0 when s = 0

3 Answers

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  • cidyah
    Lv 7
    10 years ago
    Favourite answer

    Separate the variables

    ∫ ds/sec(s) = ∫ dt

    ∫ cos(s) ds = ∫ dt

    sin(s) = t+C

    t=0; s=0

    sin(0) = 0+C

    C=0

    sin(s) = t

    s=sin^-1(t)

  • Sid
    Lv 6
    10 years ago

    ds/sec(s) = dt

    ∫ cos(s) ds = ∫ dt

    sin(s) = t + C

    When s=0, t=0

    => sin(0) = 0 + C

    => C = 0

    Hence

    t - sin(s) = 0

  • Anonymous
    10 years ago

    Your answer with explanation can be found in the sources.

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