SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0

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SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0

SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0
SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0

SAT数学题 Function f is defined by f(x)=(x-a)(x-b)/(x-c),where 0
选c啊,就是说函数 f(x)=(x-a)(x-b)/(x-c),当0

答案:III. c
解释:当 x = c 时,f(x) 被零除,因而在此点f(x)是没有定义的。
美国高中数学物理教师

已知函数f,定义如下:f(x)=(x-a)(x-b)/(x-c),0由f(x)=(x-a)(x-b)/(x-c),0