lim x→∞ 2x(√x−1−√x+5)
| √x−1+√x+5 | ||
2x*(√x−1−√x+5)* | = | |
| √x−1+√x+5 |
| 2x*(x−1−x−5 | ||
= | = | |
| √x−1+√x+5 |
| 2x*(−6) | ||
= | ||
| √x−1+√x+5 |
| x − 1 − ( x + 5) | −12 x | |||
f(x) = 2 x* | = | = | ||
| √x −1 + √x + 5 | √x −1 + √x + 5 |
| − 12 | ||
= | ||
| √1x − 1x2 + √1x + 5x2 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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