| 2 * 2 * sin36o * cos36o * cos72o | ||
cos36o * cos72o = | = | |
| 4 sin36o |
| 2 * sin72o * cos72o | sin 144o | 1 | ||||
= | = | = P | ||||
| 4sin36o | 4sin36o | 4 |
| 2cos36o*sin18o*cos18o | cos36o*sin36o | |||
L= | = | = | ||
| 2cos18o | 2cos18o |
| 2sin36o*cos36o | sin72o | sin72o | 1 | |||||
= | = | = | = | |||||
| 2*2cos18o | 4cos18o | 4sin72o | 4 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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