试题与答案

已知函数f(x)=x3-3x,直线方程为y=ax+16,与曲线y=f(x)相切,

题型:选择题

题目:

已知函数f(x)=x3-3x,直线方程为y=ax+16,与曲线y=f(x)相切,则实数a的值是  [ ]

A.-3

B.3

C.6

D.9

答案:

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