Question

a={x|-2<=x<=5}

已知集合A={x|-2＜=x＜=5}
B={X|m'+1＜=x＜=2m-1}若B包含于A，求实数m的取值范围

Answer 1

A = [-2 ,5]
B = [m+1 ,2m - 1]
若B包含于A
m + 1 ≥ -2
2m - 1 ≤ 5
-3≤ m ≤ 3