| (n−√n2−1)*(n+√n2−1) | ||
n*(n−√n2−1)=n* | = | |
| (n+√n2−1) |
| n*(n2−n2+1) | n | |||
= | = | |||
| (n+√n2−1) | (n+√n2−1) |
| n | ||
limn→∞ | = | |
| (n+√n2−1) |
| n | 1 | |||
=limn→∞ | = | |||
| (n*(1+√1−1/n2) | 2 |
| 1 | √2 | |||
limn→∞un= | = | |||
| √2 | 2 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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