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指數函數的一般形式為y=a^x(a>0且a≠1) (x∈R).它是初等函數中的一種.它是定義在C上的解析函數. 定義:一般地,形如y=a^x(a>0且a≠1) (x∈R)的函數叫做指數函數.也就是說以指數為自變量,冪為因變量,底數為常量的函數就是指數函數.當a>1時,此函數在定義域內單調遞增,當a
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