1 . 已知
,记符号
表示不大于x的最大整数(例如:
,
).若集合
,
或
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a732c76bfa47598d88b0fc9ac0c33bf.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe1e778c9e668594c42b77459328c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a090ab1d3413d618f80e175c28d0b04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5654516c4742a78590f7c051e18fd9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f728eb85964cdc4d2dc3ffc87eb540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5806497d3b5ec15d89eef8202d54d7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a732c76bfa47598d88b0fc9ac0c33bf.png)
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2 . 若
,
,
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f67b8067da7f62d1d6ffd4b9132d9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b15087acda8ee093c9b99c1d7a00b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176af904c168fd2fd9139c4002c01bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4866952e987ff2e28c19861773a10327.png)
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3 . 若关于x的方程
只有唯一解,则实数m的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f153dc95efca0dbd9e0936e8500b86.png)
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解题方法
4 . 若集合
,
,若满足
的所有m的值组成的集合记为Q,则Q的真子集个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e42454dda33180af88dc4a871df037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b398033c6d56509af6c04c01de4e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
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5 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02c87369042e3ff5399df2dbc13d6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d161f517bb4059d039337eac753788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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6 . 去年8月,上海发放了“爱购上海”为主题的“消费满100元抵50元”的电子消费券.A商家是“爱购上海”的活动商户,同时举行促销活动,每件商品按原价6折销售,但折扣不能与“爱购上海”消费券同时使用.如果你在这个商家购买商品原价的范围在(100,150)元.若使用消费券更便宜,则原价范围为______ .
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7 . 在下列表达式中,①
;②
;③
;④
,其中正确的为______ (填写所有正确的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ed28220bfef1cc6be1c80cf67cafc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db97caf458b61778c210e2c0b6bd2843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac910df3ec99f821a64e503c37c4adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c13ed7e0703f62f76d489c332df19e.png)
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8 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc95ec0bf0a14adb1eb8d8488b3635e.png)
_____ (用
,
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f7003f5a464d5c04127259d3193c600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f45d8d2f64ff58cea04e998dfefba33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc95ec0bf0a14adb1eb8d8488b3635e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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9 . 以下数据为某校参加数学竞赛的19人的成绩:66,75,77,69,78,70,72,86,88,79,80,81,94,84,82,98,83,90,91,则这19人成绩的第80百分位数是______ .
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2023-11-23更新
|
447次组卷
|
3卷引用:上海市虹口高级中学2023-2024学年高二上学期期末考试数学试题
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10 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea2b3c0b5254f255a35d825c8207971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9ff1494aff8a77e966309025244bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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