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    Not sure how to do this, can someone please explain it to me, you dont have to work out an answer just tell me how to go about working it out
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    (Original post by Mo_maths)
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    Not sure how to do this, can someone please explain it to me, you dont have to work out an answer just tell me how to go about working it out
    Are you saying that you cannot use the trapezium rule
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    (Original post by TenOfThem)
    Are you saying that you cannot use the trapezium rule
    not at all, but im not sure what to do with the integral to get a curve so i can use that rule
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    (Original post by Mo_maths)
    not at all, but im not sure what to do with the integral to get a curve so i can use that rule
    You have lost me

    Can you explain what you do not understand?


    You have 0-4

    So the strips are 0-1, 1-2, 2-3, 3-4 if you have 4 strips

    Or 0-0.5, 0.5-1 etc for 8 strips


    Is that what you did not get?
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    (Original post by TenOfThem)
    You have lost me

    Can you explain what you do not understand?


    You have 0-4

    So the strips are 0-1, 1-2, 2-3, 3-4 if you have 4 strips

    Or 0-0.5, 0.5-1 etc for 8 strips


    Is that what you did not get?
    where do you go from there to work out the area
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    (Original post by Mo_maths)
    where do you go from there to work out the area
    You use the trapezium rule

    You have your x values
    So you find your y values

    you have h

    all this just plugs into the formula
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    (Original post by TenOfThem)
    You use the trapezium rule

    You have your x values
    So you find your y values

    you have h

    all this just plugs into the formula
    so do i sub the x values in the integral root(1+x^2) dx???
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    (Original post by Mo_maths)
    so do i sub the x values in the integral root(1+x^2) dx???
    Again, I do not really know what you mean


    Which question are you doing

    If the first then you just use the trapezium rule

    If the second you use the trapezium rule and integrate then compare the answers



    Can you show me a question where you can do the trapezium rule so I can try and understand your confusion
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    (Original post by TenOfThem)
    Again, I do not really know what you mean


    Which question are you doing

    If the first then you just use the trapezium rule

    If the second you use the trapezium rule and integrate then compare the answers



    Can you show me a question where you can do the trapezium rule so I can try and understand your confusion
    lets just focus on q9, ok so i know how wide the gaps are, im given that equation thing i need to know the length of each strip, what do i do to work out that.
    hight/2(y1+(2*y2)+(2*y3)+(2*y4)+(2*y5) +y5)
    what are my y numbers
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    (Original post by Mo_maths)
    lets just focus on q9, ok so i know how wide the gaps are, im given that equation thing i need to know the length of each strip, what do i do to work out that.
    hight/2(y1+(2*y2)+(2*y3)+(2*y4)+(2*y5) +y5)
    what are my y numbers
    y=\sqrt{1+x^2} ... was that the bit you did not get

    And you have the x values
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    (Original post by TenOfThem)
    y=\sqrt{x^2+1} ... was that the bit you did not get

    And you have the x values
    that question is silly, why dont they just say an equation of a curve is this. that scrolly thing confused me cos i though i had i integrate it
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    (Original post by Mo_maths)
    that question is silly, why dont they just say an equation of a curve is this. that scrolly thing confused me cos i though i had i integrate it
    The question is asking you to estimate the integral to give the area

    You really ought to know that the area is given by \int y dx
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    (Original post by TenOfThem)
    The question is asking you to estimate the integral to give the area

    You really ought to know that the area is given by \int y dx
    I know that, but i think were just confusing each other here, thanks for your help I think I get it now
 
 
 
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