名校
解题方法
1 . 已知集合
,
.若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b442a82f5fa6b5723ad848fb11d6e309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10d45e3be953ea3563f4e1c0f4d0718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb171e17bd57652ac5812da5a823dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 集合
满足
,
,
,则集合
中的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba412c469088ffa84c71ee05f1679a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5f9ebc22c993a2e3a705715dbb2fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a510f9de25bd52f3be75ff2519029d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.3 | B.4 | C.5 | D.6 |
您最近一年使用:0次
名校
3 . 已知集合
,
,若
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49680be1ca32937e0d833090d6ed3f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8b2fa3701fc6672ade9ec5171d6c33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7f14bf7f60fe19b509223284455f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知集合
,
,且
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00cf2e5adf56d2bcd3d9534957769972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af66ca31b3de82af85ad88e1133644e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9087dcf31fb3e3c60c71766407b0a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知集合
,若
,则实数
的值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03241e5cf070b4be4070a2e447f125f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.0 | B.1 | C.2 | D.3 |
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6 . 使
成立的集合
一共有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c28eba5d65e0bbd8825ae030e02ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
名校
7 . 集合
满足:
,
,则
的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17af1098ffbd098dcf27dc7f8dbbe0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a77810ea1b5dc9205d7958920af4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2024·全国·模拟预测
8 . 已知集合
,若
,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0433437dcad3feafebeaed272b81db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86be79805dfa094ad141d303f5ffd1ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知集合
,
,且
,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0950e45d0f0e27925c902ea1c3495f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf61b7c6d1c49ebcb814e9cd61f9590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7f14bf7f60fe19b509223284455f05.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 已知集合
,
,若
中恰有三个元素,则由a的取值组成的集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5274c80d5e1e377eb1c8996af7e3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94ebc059c4951f0ba4dc5862982d8be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次