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Math Help - Integral calculus.

  1. #1
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    Integral calculus.

    2) Find the area under the curve f(x)=x^3+ 1 on 1< x < 2

    3) TRUE OR FALSE (I'm using S to represent the antiderivative symbol)

    b) S e dx = e + a constant
    c) S lnx dx = 1/x + a constant
    d) Does the antiderivative of a minus the antiderivative of 0 represent the area of a square? a is a constant greater than 0.
    Last edited by mr fantastic; July 17th 2011 at 09:50 PM. Reason: Re-titled.
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  2. #2
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    Re: A Few Problems I Need Help With

    Quote Originally Posted by knowledgekick View Post

    2) Find the area under the curve f(x)=x^3+ 1 on 1< x < 2
    This one is straight forward try \displaystyle \int_{1}^2 x^3+ 1~dx
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  3. #3
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    Re: A Few Problems I Need Help With

    Quote Originally Posted by knowledgekick View Post
    2) Find the area under the curve f(x)=x^3+ 1 on 1< x < 2

    3) TRUE OR FALSE (I'm using S to represent the antiderivative symbol)

    b) S e dx = e + a constant
    c) S lnx dx = 1/x + a constant
    d) Does the antiderivative of a minus the antiderivative of 0 represent the area of a square? a is a constant greater than 0.
    Have you been taught integral calculus? What have you tried here and where are you stuck?
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