解题方法
1 . 已知集合
.
(1)若
,求实数m的取值范围;
(2)是否存在实数m,使得“
”成立?若存在,求出m;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da416871bcb66c9906abf650e4637065.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dce6434d437a529af8577c03cc9d5a5.png)
(2)是否存在实数m,使得“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9423b53bf01fe690413657dd08fdf15e.png)
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2 . 设集合
,
.
(1)若A=B且
,求实数a,b的值;
(2)若B是A的子集,且a+b=2,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb331fa16ece8c25f1c216d65cd185fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1bc22a21312378a3622c6cd959c1753.png)
(1)若A=B且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd039882414ced3cd59d7a4d5ec76f35.png)
(2)若B是A的子集,且a+b=2,求实数b的取值范围.
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解题方法
3 . 设集合
,
.
(1)若
且
,求实数
,
的值;
(2)若
是
的真子集,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7343bf2a13c10f5de5bf4e5b24d25321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adda42da070e5c09458f7abf8633f756.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd039882414ced3cd59d7a4d5ec76f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2017-10-10更新
|
294次组卷
|
2卷引用:山西省45校2018届高三第一次联考文数试卷
4 . 设集合
.
(1)若
且
,求实数
的值;
(2)若
是
的真子集,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b2c5cc12a107be85c709ee6fa35c3d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd039882414ced3cd59d7a4d5ec76f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次