函数y=x3-x2-x的单调增区间为_.

问题描述:

函数y=x3-x2-x的单调增区间为___

∵y=x3-x2-x∴y'=3x2-2x-1
令y'=3x2-2x-1>0∴x<-

1
3
或x>1
故答案为:(-∞,-
1
3
),(1,+∞)