Results 1 to 3 of 3

Math Help - Angle between Vectors

  1. #1
    Junior Member
    Joined
    May 2009
    Posts
    51

    Angle between Vectors

    hello, i need someone to verify or correct my solution.

    I have two vectors u=[2;1;-2] and v=[1;2;3] and i need to find the cosine of the angle between them

    my solution would be cos \phi = - \frac {2} {3 \sqrt 14}

    any idea how i could verify this any other way ? i got maple, but i have no clue about the syntax, i just use the interface
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member Sampras's Avatar
    Joined
    May 2009
    Posts
    301
    Quote Originally Posted by coobe View Post
    hello, i need someone to verify or correct my solution.

    I have two vectors u=[2;1;-2] and v=[1;2;3] and i need to find the cosine of the angle between them

    my solution would be cos \phi = - \frac {2} {3 \sqrt 14}

    any idea how i could verify this any other way ? i got maple, but i have no clue about the syntax, i just use the interface
    Here
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    May 2009
    Posts
    51
    thank you very much !!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Vectors and an angle
    Posted in the Advanced Algebra Forum
    Replies: 2
    Last Post: April 6th 2011, 09:24 AM
  2. Angle between two vectors
    Posted in the Math Software Forum
    Replies: 6
    Last Post: November 22nd 2010, 07:40 AM
  3. Angle from 3d Vectors
    Posted in the Math Challenge Problems Forum
    Replies: 1
    Last Post: May 1st 2008, 06:49 AM
  4. Angle between vectors
    Posted in the Advanced Applied Math Forum
    Replies: 4
    Last Post: December 28th 2007, 08:30 AM
  5. angle between the vectors ..........
    Posted in the Calculus Forum
    Replies: 7
    Last Post: April 6th 2007, 09:04 AM

Search Tags


/mathhelpforum @mathhelpforum