1 . 集合
用列举法表示为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d274d70d3522154a1ee42725914f8a74.png)
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2 . 已知集合
若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bdb56a3df96776fe86c13c9ac38a292.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345fcc0218da13686109f3c5a20547f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bdb56a3df96776fe86c13c9ac38a292.png)
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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 . 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)
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5 . 若
,则
= ____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea201a07b64df162de1dc55aa9daab42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794a6cc061a617e27421b53113f128f0.png)
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6 . 已知
,若
且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c74fb2f4ea29ff915c52a182e53f4b2.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd357b075b18849337097a275e866bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2333f966f6ec29f0661f93d99b055cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d0d79fd0efdb59c9ca65bfae4a0861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c74fb2f4ea29ff915c52a182e53f4b2.png)
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7 . 已知
,
,
,我们记
为集合
中元素的个数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3184c855f691b009f9cdd3b302942f5b.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9575d0aa8564325f1d3c214e8f328b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84469aa567b991637d3064f109adbcaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe98752c3e46f13fc8a94fcff0a0752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd111c7f84a5da1d917b1fa05c4f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3184c855f691b009f9cdd3b302942f5b.png)
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8 . 已知集合
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c14290bab6a64b779d3ff4de9a39666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b645f3fd8584a45ba9607b27e354f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8f0818ea7ef429cd05079df9397330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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9 . 已知集合
,若
,则实数
的值为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da57f5a51b510abfe89afeb1633e8175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f57f4077b21f215ff8159ef58a7634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 函数
的函数值表示不超过
的最大整数,例如,
,若集合
,则A中元素的个数是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1550a97c21c1d71c9e95dde569668be0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2ae14cdf62d0a69dda9a58d1ea9640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae2e930c2beaca25c0f5b70851f8d4f.png)
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