试题与答案

函数f(x)=x2-x-2,x∈[-5,5],那么任取一点x0,使f(x0)>0

题型:选择题

题目:

函数f(x)=x2-x-2,x∈[-5,5],那么任取一点x0,使f(x0)>0的概率为[ ]

A.0.5

B.0.6

C.0.7

D.0.8

答案:

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