What is the formula for the sum of y = x^3
I Idealistic Junior Member Joined Sep 7, 2007 Messages 97 Sep 24, 2007 #1 What is the formula for the sum of y = x^3
G galactus Super Moderator Staff member Joined Sep 28, 2005 Messages 7,216 Sep 24, 2007 #2 You mean the sum of the first n cubes?. \(\displaystyle \L\\\sum_{k=1}^{n}k^{3}=\frac{n^{2}(n+1)^{2}}{4}\)
You mean the sum of the first n cubes?. \(\displaystyle \L\\\sum_{k=1}^{n}k^{3}=\frac{n^{2}(n+1)^{2}}{4}\)
