admin百科知識 2022-02-13 8:36:43 a∧m×a∧n=a∧（m+n）,a∧m×a∧n=a∧（m n）,網友廻答：匿名網友証明：設a^n=xa^m=y由指對數互化得log(a)x=n,log(a)x=m 則log(a)x log(a)y=m n ∵log(a)xy =log(a)x log(a)ylog(a)xy=log(a)a^n*a^m∴log(a)a^n*a^m=log(a)x log(a)y=m n由指對數互化得a^m×a^n=a^（m n）,得証... db標簽 生活常識_百科知識_各類知識大全»a∧m×a∧n=a∧（m+n）,
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