| 1 | ||
∑2nxn= | ||
| 1−2x |
| d | d | 1 | ||
(∑2nxn)= | ||||
| dx | dx | (1−2x) |
| −1 | ||
∑n2nxn−1= | (−2) | |
| (1−2x)2 |
| 2 | ||
∑(n+1)2n+1xn = | ||
| (1−2x)2 |
| 1 | ||
∑(n+1)2nxn = | ||
| (1−2x)2 |
| 1 | ||
A(x)= | ||
| (1−2x)2 |
| 1 | ||
S(x)= | ||
| (1−x)(1−2x)2 |
| 1 | A | B | C | ||||
= | + | + | |||||
| (1−x)(1−2x)2 | 1−x | 1−2x | (1−2x)2 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
| Kliknij po więcej przykładów | |
|---|---|
| Twój nick | |