| a2 − b2 | ||
a − b = | ||
| a + b |
| 4 n2 + n − ( 4 n2 − n) | 2 n | |||
an = | = | |||
| √4 n2 +n + √4 n2 − n | √4n2+n +√4n2 −n |
| 2 | ||
an = | ||
| √4 +1n + √4 −1n |
| 2 | 2 | |||
lim an = | = | = 0,5 | ||
| √4 +0 + √4 − 0 | 4 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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