1 . 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
解题方法
2 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
,在
上恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3307ce1fb03800e7265000a13c99a6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec7ef12927ef4e2d8f6721a0ae6b15.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6000b174147cec2de26041837aec1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/806256b771e36fbfdb7dedcbf9a9869d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
662次组卷
|
3卷引用:福建省泉港一中2016-2017学年高二下学期期末考文科数学试题
3 . 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
4 . 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
5 . 选修4-5:不等式选讲
已知函数
同时满足
和
.
(1)求实数
的值;
(2)记函数
的最小值为
,若
,求
的最小值.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a47f9e7b22980842de50219f2f18c97e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2077c709eae596b20e4c62753c09f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce73e98e22de1deb9b050597e84ecba0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eec78ead0f4c78fd476a4c8c4019849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32043a653eba02c79ae6395b3bcb34f.png)
您最近一年使用:0次
2016-12-04更新
|
154次组卷
|
2卷引用:2016届福建省泉州市高三5月质检理科数学试卷