Imiterere y'ibyuma ikoreshwa bizaba bitandukanye ukurikije imbaraga zo gukoresha ahantu hatandukanye nabyo biratandukanye, none nigute ushobora gusuzuma urwego rwimbaraga?Imiterere yicyuma ihindura urwego rwimbaraga: Urwego rwimbaraga zuburyo bwibyuma bihuza ibyuma byubaka ni 3.6, 4.6, 4.8, 5.6, 6 ...
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