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Math Help - Question magician:integ and lim

  1. #1
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    Thumbs up Question magician:integ and lim

    Nice question indeed
    Attached Thumbnails Attached Thumbnails Question magician:integ and lim-2345.jpg  
    Last edited by a.h.m.a.d; June 11th 2009 at 03:26 AM.
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  2. #2
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    \int_{0}^{x} \frac{\sin(x)}{\cos(x)}\sqrt{\cos(x)} \ln(\cos(\theta)) x dx=\ln(\cos(\theta))\int_{0}^{x}\frac{\sin{x}}{\sq  rt{\cos{x}}}x dx

    The integral beats me
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  3. #3
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    Quote Originally Posted by Ruun View Post
    \int_{0}^{x} \frac{\sin(x)}{\cos(x)}\sqrt{\cos(x)} \ln(\cos(\theta)) x dx=\ln(\cos(\theta))\int_{0}^{x}\frac{\sin{x}}{\sq  rt{\cos{x}}}x dx
    Quote Originally Posted by Ruun View Post


    The integral beats me

    no no no ln(\cos(\theta)) x it is one Function
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  4. #4
    Member Ruun's Avatar
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    http://integrals.wolfram.com/index.jsp?expr=sin(x)cos(x)^(-1%2F2)x&random=false

    I suppose my answer is just wrong lol

    you mean \ln(\cos(\theta)x)? or \ln(\cos(\theta x))?
    Last edited by Krizalid; June 10th 2009 at 03:30 PM.
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  5. #5
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    Quote Originally Posted by Ruun View Post
    you mean \ln(\cos(\theta)x)? or \ln(\cos(\theta x))?
    I Oqsidi ln[(cos theta)x] it is one Function
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  6. #6
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    Quote Originally Posted by a.h.m.a.d View Post
    Nice question indeed
    Something looks peculiar here. You're integerating with respect to x and yet there's an x in the upper limit??
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  7. #7
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    Quote Originally Posted by Danny View Post
    Something looks peculiar here. You're integerating with respect to x and yet there's an x in the upper limit??
    I'm sorry I have amended the Annex
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