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    Name:  image.jpg
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Size:  505.3 KBHi,

    I am facing a double Integral that I’m not sure if I’m approaching correctly. Could anyone help me work through it or tell me if I’m thinking correctly?

    I believe I need to Integrate the inner integral with respect to T via integration by parts? Although I am not sure my thinking is correct

    The question is attached
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    (Original post by SassyPete)
    Hi,

    I am facing a double Integral that I’m not sure if I’m approaching correctly. Could anyone help me work through it or tell me if I’m thinking correctly?

    I believe I need to Integrate the inner integral with respect to T via integration by parts? Although I am not sure my thinking is correct

    The question is attached
    I would switch the order of integration first as it's simpler to get n done first and the result after is relatively simple.
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    Yes it is!
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    (Original post by TeeEm)
    is the bottom limit 2n1.5 ?
    Yes sir
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    (Original post by TeeEm)
    reverse order
    sketch region
    obtain new limits
    integrate wrt N
    factorise in the resulting integrand the exponential and 1/24
    then the resulting integral requires one substitution or recognition and
    then THE END
    (CASUAL COMMENT)

    I do not usually casually comment I did enjoy the ending of your post.
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    I’ve tried several times but I keep messing up and I don’t know why
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    (Original post by TeeEm)
    reverse order
    sketch region
    obtain new limits
    integrate wrt N
    factorise in the resulting integrand the exponential and 1/24
    then the resulting integral requires one substitution or recognition and
    then THE END
    Am still stuck and having a nightmare 😭
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    (Original post by SassyPete)
    I’ve tried several times but I keep messing up and I don’t know why
    Then post your working here so we can have a look at it.
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    (Original post by TeeEm)
    look at question 51 in this link
    https://madasmaths.com/archive/maths..._cartesian.pdf
    I've missed your cat.
 
 
 
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