Răspunsuri

2014-03-01T09:22:30+02:00
Combinari de n luate cate 0 * 1^n + combinari de n luate cate 1 * 1^(n-1) * i + combinari de n luate cate 2 * 1^(n-2) * i^2 + .......... + combinari de n luate cate n * i^n;

Bafta!