Results 1 to 3 of 3

Math Help - integration

  1. November 3rd 2008, 11:26 PM #1
    samdmansam
    samdmansam is offline
    Junior Member
    Joined
    Mar 2008
    From
    Perth
    Posts
    26

    integration

    how do I integrate ((-x^2)*sqrt(x))dx
    please dont just answer, I can solve the rest but dont understand how to solve this one.
    Thanks heaps
    Sam
    Follow Math Help Forum on Facebook and Google+
  2. November 3rd 2008, 11:33 PM #2
    Soroban
    Soroban is offline
    Super Member
    Joined
    May 2006
    From
    Lexington, MA (USA)
    Posts
    11,921
    Thanks
    784
    Hello, Sam!

    You'll kick yourself . . .

    How do I integrate: . \int(\text{-}x^2)\sqrt{x}\,dx

    We have: . \int\left(\text{-}x^2\right)\left(x^{\frac{1}{2}}\right)\,dx \;=\;-\!\!\int x^{\frac{5}{2}}\,dx\quad\hdots etc.
    Follow Math Help Forum on Facebook and Google+
  3. November 3rd 2008, 11:33 PM #3
    chiph588@
    chiph588@ is offline
    MHF Contributor chiph588@'s Avatar
    Joined
    Sep 2008
    From
    Champaign, Illinois
    Posts
    1,163
    x^{2}\sqrt{x} = x^{\frac{4}{2}}x^{\frac{1}{2}} = x^{\frac{5}{2}}
    Follow Math Help Forum on Facebook and Google+
« Does this series converge? | integration question »

Similar Math Help Forum Discussions

  1. Integration help please these are three small even basic integration problems
    Posted in the Calculus Forum
    Replies: 3
    Last Post: November 3rd 2010, 01:54 AM
  2. sketch the region of integration and change the order of integration.
    Posted in the Calculus Forum
    Replies: 2
    Last Post: November 2nd 2010, 05:57 AM
  3. Definite Integration - Double integration by parts
    Posted in the Calculus Forum
    Replies: 8
    Last Post: September 2nd 2010, 01:27 PM
  4. Simple Integration problem: Trigonometric Integration
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 19th 2010, 11:55 AM
  5. Tricky integration, possibly Integration Factor
    Posted in the Calculus Forum
    Replies: 6
    Last Post: May 25th 2009, 07:58 AM

Search Tags


/mathhelpforum @mathhelpforum