Saved Bookmarks
| 1. |
1/(x(x+1)(x+2)...(x+n))=A_(0)/x+A_(1)/(x+1)+A_(2)/(x+2)+...+A_(n)/(x+n), 0 le r le n rArr A_(r)= |
|
Answer» `(-1)^(R)(r!)/((n-r)!)` |
|