Results 1 to 5 of 5
Like Tree1Thanks
  • 1 Post By JJacquelin

Math Help - integral

  1. #1
    Newbie
    Joined
    Feb 2014
    From
    canada
    Posts
    5

    integral

    integral-ins.pngI tried substitution but it didn't work. please help. thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Aug 2011
    Posts
    234
    Thanks
    53

    Re: integral

    Change of variable t=(1+x2+x4)
    dt = ( ? ? ? )dx
    Thanks from start5
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Feb 2014
    From
    canada
    Posts
    5

    Re: integral

    this is what i did: let u=1+x^2+x^4 . then i tried u substitution. u'= 2x +4x^3 but wasn;t sure what (???)dx would be.

    the answer however is 1/23 ( 1+x^2+x^4)^46 + c
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Member
    Joined
    Aug 2011
    Posts
    234
    Thanks
    53

    Re: integral

    u'=du/dx
    du = (u')dx
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Super Member
    Joined
    Mar 2010
    Posts
    908
    Thanks
    204

    Re: integral

    Hey! I gave the same answer in your other thread pls help to find integral.

    - Hollywood
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Volume integral to a surface integral ... divergence theorem
    Posted in the Advanced Applied Math Forum
    Replies: 3
    Last Post: October 7th 2010, 06:11 PM
  2. Replies: 2
    Last Post: August 31st 2010, 07:38 AM
  3. Replies: 1
    Last Post: June 2nd 2010, 02:25 AM
  4. Replies: 0
    Last Post: May 9th 2010, 01:52 PM
  5. Replies: 0
    Last Post: September 10th 2008, 07:53 PM

Search Tags


/mathhelpforum @mathhelpforum