1 . 记不超过x的最大整数为
,若集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ef9665654c618812d35f99535549d.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe65fd88f6f84c855b9f564d50eebc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ef9665654c618812d35f99535549d.png)
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2 . 设集合
为函数
的单调递减区间,集合
,则“
”是“
”的___________ 条件(填“充分不必要”或“必要不充分”或“充要”或“既不充分也不必要”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e1a8cdd79b87078117e2e5e143416a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca539014bd8a719962d62faea29acab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8fcd67ce3fe0d542daebbc5753bd5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94af2a91d5767a133b06dbc355988de.png)
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解题方法
3 . 设集合
.
(1)求
;
(2)若
,求整数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81314f8947df5a80093923e7406cd9b0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6072dcd6919fe252454ee83405c32ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
4 . 设为不大于
的最大整数,集合
,
,则
等于
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5 . 设集合
为函数
的定义域,集合
为函数
的值域,集合
为不等式
的解集.
(1)求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c55c7f765501847ae9d4f409265bde2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0c4e550a976be3e78dfba6a01929fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4836a72ee4af735413d9178519f0bd9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f421c7370000b09c5b7a9f143d325594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
6 . 已知集合
,且
,函数
满足:对任意的
,都有
为增函数,满足条件的对应法则的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96318ce0672994be502b0d16a2c740e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d3620f290044f7962b6e780cc52216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fb679cc8f7fc4d814220c3589c9779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674d988ff5bfa253d717266e846fa459.png)
A.0个 | B.1个 | C.2个 | D.3个 |
您最近一年使用:0次
7 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f146ec56628ed9e1fc34b6157733cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fde91bd6a132a87ddf429c0616df2fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
您最近一年使用:0次
名校
解题方法
8 . 已知全集
,
,
,求:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89504e77251a53877e41b64cb5c943d.png)
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69362f5972b533bcb411d60ef595a6ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6481440421886479c19a02b091f681.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89504e77251a53877e41b64cb5c943d.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fe3164411a3e4bb4589318918b2574.png)
您最近一年使用:0次
名校
解题方法
9 . 设集合
,
.
(1)当
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bd3d3ea97bd09fa3c9465b4379bb9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc44285559d9cdbba64f53c49160e99e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-11-17更新
|
394次组卷
|
15卷引用:山东省济宁市第二中学2019-2020学年高一上学期10月月考数学试题
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名校
10 . 已知集合
,
.
(1)若
求
;
(2)若
设
,已知
是
的充分不必要条件,则实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf1d3c86553068040607e42e131e560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0e1803e4d588edcb04309543eb8f96.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87676cc3ca413d9ba64fab2cd45c909c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32309e4eb1de9d20f6da87f99e08e46.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e7581a9b1bdf7e15be780aaaecc4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172c80b0d9bcb52d4071f27171819ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-05更新
|
121次组卷
|
7卷引用:江苏省南通市平潮高级中学2020-2021学年高一上学期12月学情检测数学试题