名校
1 . 已知函数
(1)当
时,求不等式
的解集;
(2)若
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5e03f1fe43c987101ddf1ad386526e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d3c756a52c9185ae6d02d9b9312f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1279ef84071f5ad7c4c1681357edd84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
545次组卷
|
10卷引用:【全国百强校】河北省武邑中学2019届高三12月月考数学(理)试题
解题方法
2 . 已知非空数集
,且
.
(1)求实数
的取值范围;
(2)当
变化时,若集合
中
的最小值为
,求
的值域.
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/9ba2a7dec4f9488cbd9cbfc7a430978d.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/d086d3ef9f354771937cf10ebf3bdc1d.png)
(1)求实数
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/2a67b08b213a432497a3f8dd151e2266.png)
(2)当
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/2a67b08b213a432497a3f8dd151e2266.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/e45811536fe346e0bd4b005f737cd899.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/3be7a776a542422e80b096ef93387b07.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/40b32e6a0b9f4918b00bd21477afbb36.png)
![](https://img.xkw.com/dksih/QBM/2015/12/1/1572330760658944/1572330766524416/STEM/40b32e6a0b9f4918b00bd21477afbb36.png)
您最近一年使用:0次
3 . 下列关系中,正确的个数为( )
①
②
③
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb8ef44eea6657a0371158bc664da5a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f38a1799a5aa1c8410281ae8e461d60f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdedf6722600ea3a5df49f2bbc9fb155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ad45790aafda0d48cd44b19f54d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb8ef44eea6657a0371158bc664da5a.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
12-13高一上·河北衡水·阶段练习
4 . 设关于
的不等式
的解集为
,不等式
的解集为
.
(1)当
时,求集合
;
(2)若
,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/01fe5cf5327d423c99f5475697199fbb.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/10a94484d7eb4b6aaeb0d57446876ca6.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/e906f329d08a459688996e1a3120bfd3.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/c5db53c5a15c4c86b8bd4d26f7c94a55.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/7567bdead3724b918584d308392b62b3.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/8a78a7cce5d64c149beeda24a2bb0e3a.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/e906f329d08a459688996e1a3120bfd3.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/4d243448f7384260bbbcedaf8f3b5727.png)
![](https://img.xkw.com/dksih/QBM/2012/1/3/1570674140315648/1570674145722368/STEM/855d262b96b347e4a55fb8a15d6be2f1.png)
您最近一年使用:0次
名校
5 . 已知A={x|x≥k},B={x|
<1},若A⊆B,则实数k的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98efc18ba76bfa079b1a4bbbbdb18661.png)
A.(1,+∞) | B.(﹣∞,﹣1) | C.(2,+∞) | D.[2,+∞) |
您最近一年使用:0次
2015-06-29更新
|
523次组卷
|
2卷引用:河北省枣强中学2017-2018学年高一上学期第一次月考数学试题