Posted on December 31, 2011March 9, 2019 by Bard Math CircleProblem 4: Summing Triangular Numbers What is the sum of the first 4 triangular numbers? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Related
