A是B的子集,则集合B不能为空集,则:
(1)2m-1≤m+1
m≤2 ------------------------------------①
且:
(2)2m-1≤-1,即:
m≤0 -----------------------------------②
(3)m+1≥0,即:
m≥-1 --------------------------------③
综合①、②、③,得:-1≤m≤0
A是B的子集,则集合B不能为空集,则:
(1)2m-1≤m+1
m≤2 ------------------------------------①
且:
(2)2m-1≤-1,即:
m≤0 -----------------------------------②
(3)m+1≥0,即:
m≥-1 --------------------------------③
综合①、②、③,得:-1≤m≤0