摘要:(四)巩固深化.反馈矫正: (1)课本P22第2题 (2)判断下列函数f(x)与g(x)是否表示同一个函数.说明理由? ① f ( x ) = (x -1) 0,g ( x ) = 1 ② f ( x ) = x, g ( x ) = ③ f ( x ) = x 2,f ( x ) = (x + 1) 2 ④ f ( x ) = | x | ,g ( x ) = (3)求下列函数的定义域 ① ② ③ f(x) = + ④ f(x) = ⑤

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