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Thread: difficult Integrals

  1. #1
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    difficult Integrals

    help me
    Attached Thumbnails Attached Thumbnails difficult Integrals-946589805.jpg  
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  2. #2
    MHF Contributor Drexel28's Avatar
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    Quote Originally Posted by dapore View Post
    help me
    Are these supposed to be the Bessel functions?
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    Quote Originally Posted by Drexel28 View Post
    Are these supposed to be the Bessel functions?
    yes my dear
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  4. #4
    MHF Contributor Drexel28's Avatar
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    Quote Originally Posted by dapore View Post
    help me
    Ok. What have you tried for the first one? For the second one, use the relation J_{n-1}(x)=\frac{2n}{x}J_n(x)-J_{n+1}(x) in conjunction with \frac{d}{dx}\bigg[x^n J_n (x)\bigg]=x^n J_{n-1}(x). I'm sure you can continue.
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