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Math Help - Help needed in Intergration Questions

  1. #1
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    Help needed in Intergration Questions

    First post so bear with me if they dont come out right :-)
    Im not too sure about the working, i have done this just now and came up with 30.375, the steps i have taken are a bit confusing though.
    Thanks very much to anyone who gives me a hand.
    1. Calculate at t=4

     \frac{4t- 2t^2 +5t - 6}{t}

    2. Calculate when t= 0.01sec
    for this i ended up with 3.1354

     0.5\cos(2\pi t - \frac  {\pi}{2})

    I have a few others but any help with these would be greatly appreciated
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  2. #2
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    Quote Originally Posted by rosspetrie View Post
    First post so bear with me if they dont come out right :-)
    Im not too sure about the working, i have done this just now and came up with 30.375, the steps i have taken are a bit confusing though.
    Thanks very much to anyone who gives me a hand.
    1. Calculate at t=4

     \frac{4t- 2t^2 +5t - 6}{t}

    2. Calculate when t= 0.01sec
    for this i ended up with 3.1354

     0.5\cos(2\pi t - \frac  {\pi}{2})

    I have a few others but any help with these would be greatly appreciated
    hey mate,

    I'm not exactly sure where you trouble lies, are you having difficulties evaluating f(t) at t = some value say t* ??

    if you could elaborate on your problem a little further I would be more than happy to assist.

    Regards,

    David
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