Question

2m-1<x<m+1怎么解

Answer 1

X<-1 而m(x-1)>x+1-2m 若m〉0 x>(x+1-2m)/m +1 若m<0 x<(x+1-2m)/m +1 则 m<0

Answer 2

X<-1 而m(x-1)>x+1-2m 若m〉0 x>(x+1-2m)/m +1 若m<0 x<(x+1-2m)/m +1 则 m<0

Answer 3

解不等式
X<M-1
X>2M+1
得当M＜-2时有解
所以当M≥-2时无解

Answer 4

解不等式
X<M-1
X>2M+1
得当M＜-2时有解
所以当M≥-2时无解