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C la 58 ÷ C la 39 ÷ C la 9

Răspuns :

    [tex]c^{58}:c^{39}:c^9 = c^{(58-39-9)} = \boxed{c^{10}}[/tex]



[tex]c^5^8:c^3^9:c^9=c^5^8^-^3^9:c^9=c^1^9:c^9=c^1^9^-^9=c^1^0[/tex]