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Math Help - Am I being really stupid or what? (Differentiation)

  1. #1
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    Am I being really stupid or what? (Differentiation)

    Hi

    t^{{\alpha}-1} dt

    When you differentiate that, its not
    ({\alpha}-1)t^{{\alpha}-2 ? Surely it is just 0 ?

    Or am I just being completely stupid..
    Last edited by ramdrop; March 14th 2012 at 08:28 AM.
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  2. #2
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    Re: Am I being really stupid or what? (Differentiation)

    \frac{\mathrm{d}}{\mathrm{d}t}\ t^{a}\ =\ at^{a-1}

    (where t is the independent variable and a is a constant power)

    or as we usually say,

    \frac{\mathrm{d}}{\mathrm{d}x}\ x^{n}\ =\ nx^{n-1}

    I haven't twigged why you want it to be 0.
    Last edited by tom@ballooncalculus; March 14th 2012 at 09:06 AM.
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  3. #3
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    Re: Am I being really stupid or what? (Differentiation)

    Nvm Solved it, its beena long day and I just made a stupid error xD
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