| n2+n−6 | 6n2−35n−60 | |||
ogólnym an= | Wynik wyszedl mi nastepujący | |||
| (n+32) | n+3)2 (n+4)2 |
| (n+1)2+n+1−6 | n2+n−6 | |||
an+1−an= | − | = | ||
| (n+4)2 | (n+3)2 |
| n2+3n−4 | (n+3)(n−2) | |||
= | − | = | ||
| (n+4)2 | (n+3)2 |
| (n+4)(n−1) | n−2 | n−1 | n−2 | |||||
= | − | = | − | = | ||||
| (n+4)2 | n+3 | n+4 | n+3 |
| (n−1)(n+3)−(n−2)(n+4) | 5 | |||
= | = | >0 | ||
| (n+4)(n+3) | (n+4)(n+3) |