| a | c | |||
Z danej proporcji | = | wynikaja nastepujace proporcje pochodne | ||
| b | d |
| a+b | c+d | |||
a) | = | |||
| a | c |
| a−b | c−d | |||
b) | = | |||
| a | c |
| a+c | a | c | ||||
c) | = | = | ||||
| b+d | b | d |
| a−c | a | c | ||||
d) | = | = | ||||
| b−d | b | d |
| a+b | a | b | d | c+d | |||||
= | + | = // proporcja // = 1 + | = | ||||||
| a | a | a | c | c |
| a+c | a | c | |||
= // proporcja | = | ⇔ ∃k≠0 a = k*c oraz b = k*d // = | |||
| b+d | b | d |
| a + k*a | a*(k+1) | a | ||||
= | = | = | ||||
| b + k*b | b*(k+1) | b |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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