Results 1 to 3 of 3

Thread: fractional confusion

  1. December 4th 2005, 11:28 AM #1
    x-disturbed-x
    x-disturbed-x is offline
    Junior Member
    Joined
    Oct 2005
    Posts
    29

    fractional confusion

    2/3 - 15(-1/2)^2 + (-1/2)^-2

    = 2/3 - 7.5 + 1?
    Follow Math Help Forum on Facebook and Google+
  2. December 4th 2005, 11:45 AM #2
    CaptainBlack
    CaptainBlack is offline
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    3
    Quote Originally Posted by x-disturbed-x
    2/3 - 15(-1/2)^2 + (-1/2)^-2

    = 2/3 - 7.5 + 1?
    (-1/2)^2\ =\ (-1/2).(-1/2)\ =\ 1/4

    (-1/2)^{-2}\ =\ (-2).(-2)\ =\ 4

    so now you should be able to complete this yourself.

    RonL
    Follow Math Help Forum on Facebook and Google+
  3. December 4th 2005, 12:06 PM #3
    x-disturbed-x
    x-disturbed-x is offline
    Junior Member
    Joined
    Oct 2005
    Posts
    29

    tangents n norms

    The equation of a curve is y = 3x^2 - 2x + 1

    find the coordinates of the point R on the curve at which the gradient is -14.
    Follow Math Help Forum on Facebook and Google+
« Question about Quadratic equation/parabola/factoring stuff | tgnts n norms »

Similar Math Help Forum Discussions

  1. Fractional indicies?
    Posted in the Algebra Forum
    Replies: 11
    Last Post: April 5th 2011, 07:32 PM
  2. [SOLVED] Fractional Equality
    Posted in the Algebra Forum
    Replies: 2
    Last Post: March 28th 2011, 01:28 PM
  3. Fractional Powers
    Posted in the Algebra Forum
    Replies: 2
    Last Post: March 6th 2010, 06:21 AM
  4. fractional indices
    Posted in the Math Topics Forum
    Replies: 3
    Last Post: October 7th 2009, 12:08 PM
  5. Fractional Calculus
    Posted in the Calculus Forum
    Replies: 3
    Last Post: July 26th 2007, 04:15 PM

Search Tags


/mathhelpforum @mathhelpforum