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Math Help - Need help with these integration problems

  1. #1
    Newbie
    Joined
    Feb 2009
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    Need help with these integration problems

    #1) what is the area of the region that lies under y= xe^(-x^2),
    over 0 greater than or equal to x less than or equal to 3


    #2) What is the graph of definite integral (lnx)^2 dx between 1 and e?


    3#) what is the antiderivative of ln2?
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  2. #2
    MHF Contributor
    Joined
    Nov 2008
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    France
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    #1) Not very clear to me

    #2) You can integrate lnē(x) by parts using u'(x)=1 and v(x)=lnē(x)

    3#) ln(2) being a constant, its antiderivative is ln(2) x + constant
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