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Math Help - Definate integrals (the first way- by definition)

  1. #1
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    Definate integrals (the first way- by definition)

    ∫[0,2,2-x^2,]
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  2. #2
    Super Member ILikeSerena's Avatar
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    Re: Definate integrals (the first way- by definition)

    Quote Originally Posted by mathk View Post
    ∫[0,2,2-x^2,]
    Welcome to MHF, mathk!

    Do you mean \int_0^2 (2-x^2) dx?

    If so, could you perhaps show a little of what you know?
    That makes it easier for us to help you.
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  3. #3
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    Re: Definate integrals (the first way- by definition)

    2-0/n= 2/n

    x1 = 2/n
    x2=4/n
    xi-2i/n

    \int_0^2f(2i/n)2/n
    how do you draw or write limit and summation?
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  4. #4
    Super Member ILikeSerena's Avatar
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    Re: Definate integrals (the first way- by definition)

    Use [ tex ] ... [ /tex ] around your formulas to display them mathematically (without the spaces before and after "tex").


    To get a summation, write [ tex ]\sum_{i=0}^{\infty} x_i[ /tex ], which shows up like:

    \sum_{i=0}^{\infty} x_i


    To get a limit, write [ tex ]\lim_{n \to \infty} x_i[ /tex ], which shows up like:

    \lim_{n \to \infty} x_i


    Click Reply With Quote to see what I did.
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