设全集U=R,A=｛x|3m-1〈x〈2m｝,B=｛x|-1〈x〈3｝,若集合A是集合B补集的真子集,求实数m的取值范围
人气：396 ℃ 时间：2019-08-19 11:09:38
解答
B补集={x|x≤-1 or x≥3}
3m-1
推荐
- 设全集U=R,A=｛x|3m-1〈x〈2m｝,B=｛x|-1〈x〈3｝,若集合A是集合B补集的真子集,求实数m的取值范围
- 设集合A={x|-3≤x≤4}，B={x|m-1≤x≤3m-2}，若A∩B=B，求实数m的取值范围．
- 设全集U=R,A=｛X｜3M-1
- 设集合A={x|1≤x≤3},B={x|x-a≥0},若A是B的真子集,求实数a的取值范围
- 设集合A={a-2＜x＜a+2},B{x|-2＜x＜3},若A是B的真子集,求实数a的取值范围
- 以《今天我烧饭》为题 一篇字600作文
- 秋天的诗句和词,越多越好!
- 1.Because the garden was untended,the windows had no shutters,and the lawn (overrun) by weeds,people passing by the old
猜你喜欢
