1 . 若“
”是“
”的充分不必要条件,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e897de1aeb2f0951f0e6794b372a485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6749db809dd84c2cfe5c47bea121e356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
2 . 命题“
”的否定是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd3fc59bb99bbb5e33dbd30b4ebfc71.png)
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解题方法
3 . 设集合
,
,且
,则
值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62f4ba8fbfc647af35d37b4634f4860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64aac8a54ce94d22e384b0487e52afc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe93be2a3380a53c2e683cc6e9b920aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 若“
,
”是假命题,则实数
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1447f3f1f838781f7f44f912f0770995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf50b34d559607dc5a75c90a72e558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
5 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a4f6c37d51cd1b1ba8785d931ec78e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39fc671f154e86a8b10ea2c23903a169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
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6 . 设全集为
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0901a251f11b472a41bdb82ea217601.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/263e321830c0584353e19e19475309af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bf383bb9e68dde1d91355358d45d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a7147daacbc2f8b2671af8a17e6d470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0901a251f11b472a41bdb82ea217601.png)
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解题方法
7 . 设
为实数,集合
,
,若
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a09846657f373f2671a0365db38574b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3746d9b0111093ba92f7371fb9b3c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
8 . 深圳科学高中先后举办了多个学科的课余活动.已知高一(1)班有50名同学,其中30名同学参加了数学活动,26名同学参加了物理活动,16名同学同时参加了数学,物理两个学科的活动,则这个班既没有参加数学活动,也没有参加物理活动的同学人数是__________ .
您最近一年使用:0次
9 . 已知集合
,
,且
,则实数
的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e496b645560cd7ab5256399bb18ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e482c023ae002567286f6fb93bd7ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7f14bf7f60fe19b509223284455f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
10 . 集合
中恰好有两个元素,则实数
满足的条件是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22cb533e99c8f273494a43eff429c1fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次