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Math Help - definite integrations

  1. #1
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    definite integrations

    Integral of [sqrt(t)*ln t]dt from 1 to 4.
    I tried to do substitution but I think I am doing it wrong

    u = ln t
    du/dt = 1/t
    tdu = dt

    the square root in the original problem is confusing me. can someone help?
    thanks
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  2. #2
    Math Engineering Student
    Krizalid's Avatar
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    Did you try, integration by parts?
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  3. #3
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    Quote Originally Posted by Krizalid View Post
    Did you try, integration by parts?
    oh wow I forgot about that. thank you lol, i got the answer
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