已知全集合
,
,
,求集合
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80eb6c45f40735c7a7c8de480c65473b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04eaa01f36a602344242606e9212229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70a59467b696996f831f245c518603f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c093cbde3d3472d1f7f2b0dff2bc4881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
更新时间:2021-10-07 11:38:08
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解答题-问答题
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(0.94)
名校
【推荐1】已知全集
,集合
,集合
.
(1)求
及
;
(2)若集合
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4d03170608400c6406aa910fb4855d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b780aa348f970809bb8bbcbf8a8e38.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40dd9f714d61a985b52583cb8403054c.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/214f2560b1a8534992e7c5c2b076f625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e544b1304a6bbc87283cf741f134cebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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容易
(0.94)
解题方法
【推荐2】若集合
,当
分别取下列集合时,求
.
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582b9188ddab446667151971d272c376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0b08b4fe792c9eecea1bda373071a3.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/decf44dc9c42ead1dbf37fa7cdeb5b80.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbdb534ab75f6d14bf82f9d00c5118fe.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/823aae11ba8d71e866a01f0e26c7dccf.png)
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解答题-问答题
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容易
(0.94)
名校
【推荐1】已知集合
,
,
.
(1)求
;
(2)若
是“
”的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee710d3dfb345f97283445953f71adb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af8ac777c21a4b5c6b1383a5d26a01ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514c1b92df20cf1c8b8405bb2ed45a25.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-问答题
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容易
(0.94)
解题方法
【推荐1】设
时,不等式
成立,求正数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7e7e78d71dd8a58479e052c999202c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f5ae573ce01051d95908f0398d8429.png)
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(0.94)
【推荐2】若不等式
的解集为
,函数
的定义域为
,
.
求:(1)
(2)
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2caf1440f6fa5ba70d177ec38eac3ebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6e413dbf83e132398ce0d200487006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
求:(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f819d28534c5280ee573381463ff15c.png)
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