| ax+a−x | ||
f(x)= | a>0 | |
| 2 |
| ax+y+a−x−y | ||
f(x+y)= | ||
| 2 |
| ax−y+a−x+y | ||
f(x−y)= | ||
| 2 |
| ax+a−x | ||
f(x)= | ||
| 2 |
| ay+a−y | ||
f(y)= | ||
| 2 |
| ax+y+a−x−y | ax−y+a−x+y | |||
f(x+y)+f(x−y)= | + | = | ||
| 2 | 2 |
| ax+y+a−x−y+ax−y+a−x+y | ||
= | ||
| 2 |
| ax+a−x | ay+a−y | ax+y+ax−y+a−x+y+a−x−y | ||||
2f(x)f(y)=2* | * | = | ||||
| 2 | 2 | 2 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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