名校
解题方法
1 . 已知
,
.
(1)若
,求不等式
的解集;
(2)若不等式
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3363ec4cfac92180fe6eb0215a2bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6cf993b9614fd187e84029e55eeb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfea60a0b2e13c123f862f15d6c9485b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知函数f(x)=ax2+bx+c(a,b,c∈R),当x∈[-1,1]时,|f(x)|≤1.
(1)求证:|b|≤1;
(2)若
,求实数a的值.
(1)求证:|b|≤1;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df97c4db5f580fea4e71e54c1c7076de.png)
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名校
解题方法
3 . 已知函数
.
(1)当
时,求函数
的定义域;
(2)若关于
的不等式
的解集是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0496513fba3798ee5b9dfbacbbb2a040.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7a1d739890a8951586e23b78b035bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da3a6d011679952771607b3a166676b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-01-18更新
|
424次组卷
|
3卷引用:安徽省亳州市蒙城一中2017-2018学年高三第五次月考数学(理)试题
2014·云南红河·一模
4 . 函数
.
(1)若
,求函数
的定义域
;
(2)设
,当实数
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ea38df527794c3b56ed92ff2bb4bee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ff5406ca1237ba1efad11a9cb0fd17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9c5a3d0c7c7c9ee158cc8ee45e5c8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76091880e7030634ad1a504c6089809c.png)
您最近一年使用:0次
2016-12-03更新
|
1871次组卷
|
4卷引用:2016届安徽省马鞍山二中等高三第三次联考理科数学试卷
2016届安徽省马鞍山二中等高三第三次联考理科数学试卷2016届安徽省马鞍山二中等高三第三次联考文科数学卷(已下线)2014届云南省红河州高三毕业生复习统一检测理科数学试卷(已下线)2014届云南省红河州高三毕业生复习统一检测文科数学试卷
5 . 选修4-5:不等式选讲
已知函数
.
(1)解不等式
;
(2)若存在实数
,使得
成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7708336fc1b41522e30aa33ffc28c3e2.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc6d8acdd4244dc03f2bdc117c6ba30.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe554c92e9e81ad7e418defe2a4d209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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6 . 已知函数
,记
的解集为
.
(1)求
;
(2)已知
,比较
与
的大小.
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/08395194f572410bb4e35914ad6f44b7.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/c281b0aa2b7d43fc840ed5b5df9af0c2.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/3d0ea173de23415eabe4a4fab8cdcb21.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/3d0ea173de23415eabe4a4fab8cdcb21.png)
(2)已知
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/fb4620f2b6024317ba647ecb507d2aa1.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/07456f29766642039869ef6089ac4b75.png)
![](https://img.xkw.com/dksih/QBM/2016/3/17/1572543762194432/1572543768616960/STEM/a9e0b255682848df85cb129a4e33c348.png)
您最近一年使用:0次