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Math Help - Stuck - Integration

  1. #1
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    Stuck - Integration

    I just try but i don't find any relation for the attached question.

    sorry if this question not under this section.
    Attached Thumbnails Attached Thumbnails Stuck - Integration-integration.png  
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  2. #2
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    Re: Stuck - Integration

    Use what you know. \int_2^5 4h(x)dx = \int_2^3 4h(x)dx + \int_3^5 4h(x) dx = 24 + \int_3^5 4h(x)dx.

    So, for part (a), the answer is 24 + 4\int_3^5 h(x)dx.

    Do something similar for part (b). You won't be able to get rid of the integral entirely, but you can limit the bounds of integration.
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  3. #3
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    Re: Stuck - Integration

    tq for the respond mr slip

    that what i try to do...but before i start the h(x) & k(x) make me stuck...when i check the formulae....the function should be same h(x) or k(x) then we can start the integration....correct me if wrong
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  4. #4
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    Re: Stuck - Integration

    If h(x) = k(x), then yes, you could determine values for each part that did not include integrals.
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  5. #5
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    Re: Stuck - Integration

    Dear SlipEternal..

    I agree with your Q(a) ans...

    but i dont agree with the answer given on the book as attached. i think the answer is wrong both for (a) & (b)

    Stuck - Integration-ans.png
    Last edited by nikconsult; October 18th 2013 at 08:14 AM.
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  6. #6
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    Re: Stuck - Integration

    Dear All..

    I just update my calculation base on h(x) = k(x) ..i get the ans for (a) 64 but not for (b)..hope u have time to confirm my calculation on (b)..please find attached
    Attached Thumbnails Attached Thumbnails Stuck - Integration-my-ans.jpg  
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  7. #7
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    Re: Stuck - Integration

    Quote Originally Posted by nikconsult View Post
    Dear All..

    I just update my calculation base on h(x) = k(x) ..i get the ans for (a) 64 but not for (b)..hope u have time to confirm my calculation on (b)..please find attached
    If the functions are equal, then your answers are correct.
    Thanks from nikconsult
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  8. #8
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    Re: Stuck - Integration

    Quote Originally Posted by SlipEternal View Post
    If the functions are equal, then your answers are correct.
    tq for your respond SlipEternal

    do you mean my ans for (b) section is correct as per my attachement??
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