Results 1 to 2 of 2

Math Help - Need Help!!

  1. #1
    Newbie
    Joined
    Mar 2014
    From
    Montreal
    Posts
    1

    Angry Need Help!!

    I'm actually working on a math project and I can't solve this equation. I know it gives 0, but I can't show why.


    Need Help!!-math.jpg add means SUM x=0 .. y
    I have to do the (lim y->inf) of this function!

    Thank You

    EDIT: also, the SUMx=0..y equals 2^y
    Last edited by RaulD; March 13th 2014 at 08:58 PM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Nov 2013
    From
    California
    Posts
    2,201
    Thanks
    848

    Re: Need Help!!

    you lost me with the edit.

    do you mean this?

    $z=\dfrac{\left(\begin{array}{c}y \\ \frac{x+y}{2}\end{array}\right)}{\displaystyle{ \sum_{x=0}^y} \left(\begin{array}{c}y \\ x\end{array}\right)}$

    and you want to show $z=0$ ? It's pretty clearly not 0 as all those terms are positive.
    Follow Math Help Forum on Facebook and Google+


/mathhelpforum @mathhelpforum