Results 1 to 3 of 3

Math Help - Conceptual Integrations

  1. #1
    Junior Member Selim's Avatar
    Joined
    Feb 2010
    Posts
    38

    Conceptual Integrations

    To integrate \int\sqrt{a^2-x^2} you will let x = ...

    To integrate \int\sqrt{x^2-a^2} you will let x = ...

    To integrate \int\sqrt{x^2+a^2} you will let x = ...

    I'm not sure if I'm meant to derive these or just know them. Either way, I'm screwed.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Master Of Puppets
    pickslides's Avatar
    Joined
    Sep 2008
    From
    Melbourne
    Posts
    5,236
    Thanks
    28
    Just know them, google 'trigonometric substitution for integration'
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,758
    Thanks
    493
    Quote Originally Posted by Selim View Post
    To integrate \int\sqrt{a^2-x^2} you will let x = ...

    To integrate \int\sqrt{x^2-a^2} you will let x = ...

    To integrate \int\sqrt{x^2+a^2} you will let x = ...

    I'm not sure if I'm meant to derive these or just know them. Either way, I'm screwed.
    these all lead to trig substitutions.

    8. Integration by Trigonometric Substitution
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. integrations!
    Posted in the Calculus Forum
    Replies: 2
    Last Post: March 21st 2010, 02:45 PM
  2. Integrations!
    Posted in the Calculus Forum
    Replies: 4
    Last Post: February 4th 2010, 12:59 PM
  3. Two integrations
    Posted in the Calculus Forum
    Replies: 3
    Last Post: January 6th 2010, 04:22 PM
  4. Integrations...
    Posted in the Calculus Forum
    Replies: 2
    Last Post: December 20th 2009, 10:41 AM
  5. Integrations
    Posted in the Calculus Forum
    Replies: 11
    Last Post: December 26th 2008, 06:57 AM

Search Tags


/mathhelpforum @mathhelpforum