一、单选题(共8小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc57726dbf84b9be559752c3a88ffe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 交集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
A.{x|![]() ![]() | B.{x|x>![]() |
C.{x|x<![]() | D.{x|x<![]() ![]() |
【知识点】 解不含参数的一元二次不等式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec7afc317d3bf5231add15144c510d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee4ccbf38fedb0c2f26f308b68132175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 作差法比较代数式的大小解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165ef4a4256ad0f5c3060cab626deec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d6d10da9762765bb42be588fed622c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ecdb70ebf80deba3503d4b746bab68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a4786298021b32d1157d8cfed1dd32f.png)
( )
A.0 | B.1 | C.2 | D.3 |
【知识点】 判断命题的真假解读 由已知条件判断所给不等式是否正确解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65130902defb4c853e3b7e968e52b805.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710a76e7ba922fb7b1340d46d7e5e6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4877af9f03ea446225a2c8808f857ca.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50395e02fe609225df96acd2b81bc5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84189db88e42b4b5da3d4f502c21eed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 一元二次不等式的解法 由一元二次不等式的解确定参数解读
二、多选题(共4小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca24341509c05e672999202f2df0ebaf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 由已知条件判断所给不等式是否正确解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ca6573bf9e87a4381c2b2fe67ae801.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 解含有参数的一元二次不等式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.如果![]() ![]() ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535cb1ad9add8cf7205690755625198f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
三、填空题(共4小题)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed38cde5c3a0314f5ab26022895d0aeb.png)
【知识点】 解不含参数的一元二次不等式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1f3a141ba68d2547bb6376c59e0cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
【知识点】 根据元素与集合的关系求参数解读 解含参数的一元一次不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ceec4b56e0743426ce72c3fc50c0333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1925a460960346a1249c6852908dcf29.png)
【知识点】 基本不等式求和的最小值解读
四、解答题(共6小题)
【知识点】 由一元二次不等式的解确定参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c3f0536807dd822ff082a21b503463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da9bfc7bad8739fa88eef5cdb41d367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4198346c1d7c84ee86991d3981ff1b.png)
(1)求b和c的值;
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5db8ddf120a578303f3dbc154aec31b.png)
(Ⅰ)当a=﹣1时,求不等式f(x)>2x的解集;
(Ⅱ)当不等式f(x)>1的解集为R时,求实数a的取值范围.
【知识点】 绝对值三角不等式解读 分类讨论解绝对值不等式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783f3646897cccf1e621f4ca8fd6024f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)