已知集合
,
.
(1)是否存在正实数a使集合A,B相等?若能,求出a的值,若不能,试说明理由;
(2)若命题p:
,命题q:
且p是q的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c23766e2c4d599b5c995f57bcae95fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b8845a2569ede06b24888a19b3bd28.png)
(1)是否存在正实数a使集合A,B相等?若能,求出a的值,若不能,试说明理由;
(2)若命题p:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
23-24高三上·山东德州·阶段练习 查看更多[2]
更新时间:2023-10-07 16:24:40
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【推荐1】已知集合A={x|﹣2≤x≤5}.
(1)若B⊆A,B={x|m+1≤x≤2m﹣1},求实数m的取值范围;
(2)若A⊆B,B={x|m﹣6≤x≤2m﹣1},求实数m的取值范围;
(3)若A=B,B={x|m﹣6≤x≤2m﹣1},求实数m的取值范围.
(1)若B⊆A,B={x|m+1≤x≤2m﹣1},求实数m的取值范围;
(2)若A⊆B,B={x|m﹣6≤x≤2m﹣1},求实数m的取值范围;
(3)若A=B,B={x|m﹣6≤x≤2m﹣1},求实数m的取值范围.
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【推荐2】设
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,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8befb036e3f35cb32ce0cd9c77140cf.png)
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,求
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(2)若
且
,求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5aad9dee78ba35b7b1c1b6cc289cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989ffb3d34f8a78bc714df918ffcc8b6.png)
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(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd7fbcdb1cc901fad3c3d9a5822ea00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29cd450d0feaea9acb27a60430f4a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066f5d3c4ce56974a4209e187a085f0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfce1c6acb78183c1d2fa9c7e7e93fa0.png)
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a366c21a3dc3c42bff688faaa3649c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0aaf70db55eec42b7b408fff1b9cb7c.png)
(1)求集合A;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793b969673dda2ca3a81f9abb1e0c8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fedf1176ff497d9fa4510e57ba90267a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
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