| (n+1)!*(2n)! | |
n∊N+ | |
| (2n+1)!*n! |
| n! * (n + 1) * (2n)! | n + 1 | ||
= | |||
| (2n)! * (2n + 1) * n! | 2n + 1 |
| 1 | 1 | 1 | ||||
(2+ | )2+(4+ | )2+...+(2n+ | )2 −Oblicz sumę | |||
| 2 | 4 | 2n |
| 1 | 1 | 1 | ||||
4 + 2 + | + 42 + 2 + | + ... + 4n + 2 + | ||||
| 4 | 42 | 4n |
narazie dziękuje, ale mysle ze dzis jeszcze sie odezwe
| 1 − 4n | ||
1o a1 = 4 q = 4 Sn1 = 4 * | ||
| 1 − 4 |
| 1 | 1 | 1 |
| ||||||||||||||
3o a1 = | q = | Sn3 = | * | ||||||||||||||
| 4 | 4 | 4 |
|