Results 1 to 2 of 2

Thread: Double Root - do they touch?

  1. May 26th 2009, 08:20 AM #1
    Aquafina
    Aquafina is offline
    Member
    Joined
    Apr 2009
    Posts
    190

    Double Root - do they touch?

    hi is it true that if we solve 2 equations simultaneously and get a double root then they just touch, rather than intersect?

    Why is this the case if so?
    Follow Math Help Forum on Facebook and Google+
  2. May 26th 2009, 11:41 AM #2
    HallsofIvy
    HallsofIvy is offline
    MHF Contributor
    Joined
    Apr 2005
    Posts
    13,707
    Thanks
    537
    It is true that the two curves must be tangent at that point.
    Follow Math Help Forum on Facebook and Google+
« slope of a tangent line | Complex analysis tutorial sheet »

Similar Math Help Forum Discussions

  1. average number of lines that touch a certain area
    Posted in the Advanced Statistics Forum
    Replies: 4
    Last Post: April 25th 2011, 07:34 AM
  2. when the line touch the inner circumference of the circle ?
    Posted in the Geometry Forum
    Replies: 2
    Last Post: September 28th 2010, 11:24 PM
  3. Double Root of a Polynomial
    Posted in the Calculus Forum
    Replies: 13
    Last Post: May 25th 2010, 10:10 AM
  4. Looking For A Double Root
    Posted in the Algebra Forum
    Replies: 3
    Last Post: February 9th 2009, 06:59 PM

Search Tags


/mathhelpforum @mathhelpforum