Odpowiedź:
2.(12) = 2,121212...
I. 2,121212... = x /·100
II. 212,121212... = 100x
.................................................................
II - I 210 = = = =...= 99 x /: 99
x = 210/99 = 70 / 33
2,(12) = 70 / 33
Szczegółowe wyjaśnienie:
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Odpowiedź:
2.(12) = 2,121212...
I. 2,121212... = x /·100
II. 212,121212... = 100x
.................................................................
II - I 210 = = = =...= 99 x /: 99
x = 210/99 = 70 / 33
2,(12) = 70 / 33
Szczegółowe wyjaśnienie: