Results 1 to 4 of 4

Thread: simple integration

  1. October 9th 2008, 09:07 AM #1
    wantanswers
    wantanswers is offline
    Junior Member
    Joined
    Jun 2008
    Posts
    32

    simple integration

    <br /> <br /> \int^{\infty}_{-\infty}x^{-1/2}e^{x/2}dx<br />
    Follow Math Help Forum on Facebook and Google+
  2. October 9th 2008, 09:30 AM #2
    watchmath
    watchmath is offline
    Junior Member
    Joined
    Oct 2008
    Posts
    64
    Edit: sorry it was wrong
    Follow Math Help Forum on Facebook and Google+
  3. October 9th 2008, 10:57 AM #3
    Moo
    Moo is offline
    A Cute Angle Moo's Avatar
    Joined
    Mar 2008
    From
    P(I'm here)=1/3, P(I'm there)=t+1/3
    Posts
    5,618
    Thanks
    6
    Hello,

    This is weird because it is not defined for x<0...
    Follow Math Help Forum on Facebook and Google+
  4. October 9th 2008, 01:46 PM #4
    watchmath
    watchmath is offline
    Junior Member
    Joined
    Oct 2008
    Posts
    64
    Quote Originally Posted by wantanswers View Post
    <br /> <br /> \int^{\infty}_{-\infty}x^{-1/2}e^{x/2}dx<br />
    Well intuitively when say x>1, e^{x/2} grow faster then \sqrt{x} . It follows that \int_1^\infty \frac{e^{x/2}}{\sqrt{x}}\,dx diverges and hence so is the original integral.
    Follow Math Help Forum on Facebook and Google+
« [SOLVED] hm how does this integral work? | Linear Approximation Question »

Similar Math Help Forum Discussions

  1. Simple integration
    Posted in the Calculus Forum
    Replies: 2
    Last Post: October 20th 2011, 12:36 PM
  2. simple integration
    Posted in the Calculus Forum
    Replies: 5
    Last Post: June 14th 2011, 04:07 AM
  3. Simple Integration problem: Trigonometric Integration
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 19th 2010, 10:55 AM
  4. Simple Integration
    Posted in the Calculus Forum
    Replies: 3
    Last Post: January 31st 2009, 04:32 PM
  5. simple integration
    Posted in the Calculus Forum
    Replies: 3
    Last Post: October 20th 2008, 04:49 PM

Search Tags


/mathhelpforum @mathhelpforum