问题:
已知函数f(x)=x+2 x,g(x)=x+lnx, h(x)=x-
x
-1的零点分别为x 1,x 2,x 3,则x 1,x 2,x 3的大小关系是( )
A.x1<x2<x3
B.x2<x1<x3
C.x1<x3<x2
D.x3<x2<x1
已知函数f(x)=x+2 x,g(x)=x+lnx, h(x)=x-
-1的零点分别为x 1,x 2,x 3,则x 1,x 2,x 3的大小关系是( )
x |
A.x1<x2<x3 | B.x2<x1<x3 | C.x1<x3<x2 | D.x3<x2<x1 |
参考答案: