1 . 选修4-5:不等式选讲
已知函数
.
(1)解关于
的不等式
;
(2)若直线
与曲线
围成一个三角形,求实数
的取值范围,并求所围成的三角形面积的最大值.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15afe17ac0a93a3164159d433e94c2ff.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95eb0b60df7ad3fa89ecd731e1e57adc.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-03-13更新
|
191次组卷
|
2卷引用:2017届福建省泉州市高三3月质量检测文数试卷
名校
2 . 选修4-5:不等式选讲.
已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368431fb28361058e0081628a9d73648.png)
.(1)当
时,函数
的最小值为4,求实数
的值;(2)若对于任意
,不等式
恒成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368431fb28361058e0081628a9d73648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3210274e57cc0487a58b99ea274b8aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fb51c831740d9fe307c03537080448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417b9a109e3dcc3346f7f810e0c22ae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096dcd8029361d0734ce9382291d02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2013·福建漳州·一模
3 . 已知函数![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/1b23eb5ea9f646929b5b9b55ab068df0.png)
(I)当
时,求不等式
的解集;
(Ⅱ)若
的解集包含
,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/1b23eb5ea9f646929b5b9b55ab068df0.png)
(I)当
![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/38d926f1d8574fba949169dc373cf539.png)
![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/6d315aa548804140b6d5b287920eab34.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/0a6c0063a9e5448e8b0cc89db95434de.png)
![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/86a18385361a47e7a7b92d4f289b04e7.png)
![](https://img.xkw.com/dksih/QBM/2013/8/23/1571319354097664/1571319360151552/STEM/26a8e13c15074925a0e8938c99fee061.png)
您最近一年使用:0次
2016-12-02更新
|
1114次组卷
|
3卷引用:2013届福建省漳州市四地七校高三6月模拟考理科数学试卷
4 . 选修4-5:不等式选讲
已知函数
.
(1)解不等式
;
(2)已知不等式
的解集为
,且
,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6a81634543f6d38a9a43c1d3c41e45.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f37f4cf19a5ca3ab61a84171a0010f.png)
(2)已知不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96a4b9b4b52507b51da6ec99a2262c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/025b73e17cab2eaf0fadf373cfee519a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
5 . 选修4-5:不等式选讲
解不等式f(x)+f(1-x)10;
若a+b=4,证明:f(a2)+f(b2)8
已知函数f(x)=|2x-4|
解不等式f(x)+f(1-x)10;
若a+b=4,证明:f(a2)+f(b2)8
您最近一年使用:0次
6 . 选修4—5:不等式选讲
已知函数
的最小值为2.
(Ⅰ)求实数
的值;
(Ⅱ)若
,求不等式
的解集.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7470dbc050f9a58c0f9b791f05850be2.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075a7c95e87c5be50b369870d7e5a789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dbd58b21a94cf93f4623c07452b102.png)
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7 . 选修
:不等式选讲
(Ⅰ)若不等式
恒成立,求实数
的取值范围;
(Ⅱ)当
时,直线
与函数
的图象围成三角形,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c4ab4b9e8a2d3867554364713b999.png)
已知函数,
.
(Ⅰ)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c896c7bbf588eb53b6a1d594f2e863a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
8 . 选修4-5:不等式选讲
已知函数
.
(1)当
时,解关于
的不等式
;
(2)求证:
,
.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad7ed583a96660ecfdad8cf77106bdf.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7292e589d79ce444ccdd5c5b6bb0824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a8cb96a9e39bc196289712c325265c.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5726a9efc9b1c5a4bd95a6582583fa06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1edee620573a469870447ac4390abf7.png)
您最近一年使用:0次
9 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若函数
的最小值为5,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9a53029e199b0b2b373b0e6c90a4bc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0148d49a59ee8f80c13fcff56aa6d4.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次