## anonymous 5 years ago Determine whether series is absolutely convergent, conditionally convergent or divergent: summation of the infinite series [(-1)^(n+1)] * (n^2*2^n) / n! where n=1?

1. anonymous

omg the formula is damn confusing

2. anonymous

so are you asking this$\sum_{n=1}^{\infty}[(-1^{n+1})(n ^{2}2^{n})]/n!$ ?