Hello everyone, I was wondering if anyone here could help me out with a problem I'm trying to solve involving discrete math. The problem is an arithmatic-geometric series and I need to find the formula for the summation of it. Here it is:
The sum (sigma) from i=1 to n of [ i^2 * 3^i ]
If someone could help me, or show me how to solve this, I'd greatly appreciate it, Thanks!
