名校
1 . 选修4-5:不等式选讲.
已知函数
,
,
的解集为
.
(Ⅰ)求
的值;
(Ⅱ)若
,
成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0437028493de207cc48b9a7351f721b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d86ee75bfcd4d1b044e9a21c5a0f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0191d57b7d98e205d86e624ffcbbc33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896a905472979b76f836876ddba638d5.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa13a65fc4a12133f9835396d79e989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2016-12-04更新
|
252次组卷
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8卷引用:2016届山西省康杰中学等校高三上学期第二次联考文科数学试卷
解题方法
2 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d1019246a653a14a5dc1bdf9d3487d.png)
(1)若
,证明:
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d1019246a653a14a5dc1bdf9d3487d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8612c32279bef2fc914c685f475a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369100ccd44feaa77e5f119ea949a879.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d4da2b54bf28ff8346a73e11065459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 选修4-5:不等式选讲
设实数
满足
.
(1)若
,求
的取值范围;
(2)若
,且
,求
的最大值.
设实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/346171d0a0460e5b6627ca462da71402.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85cf3a99ecede8fbd111e1c58a1387f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf04fe8895c10624636a815d3d752975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457f50c774979f8b3057303e150fa188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
您最近一年使用:0次
2016-12-03更新
|
296次组卷
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3卷引用:2014届辽宁省实验中学高考前最后模拟理科数学试卷
4 . 已知函数![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/f84adeb69ab4407191c9eaa8189de5f1.png)
(1)解关于
的不等式
;
(2)若
的解集非空,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/f84adeb69ab4407191c9eaa8189de5f1.png)
(1)解关于
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/01a7bea2ba954cbd93f4df0171cfe65f.png)
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/ecf1bf7d6405424b86be4c8fcc8df124.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/9d573282e62e4d27abb1cd75d9df6187.png)
![](https://img.xkw.com/dksih/QBM/2015/9/16/1572234484342784/1572234490249216/STEM/5bd933ed30a34a528556a456a39a84a4.png)
您最近一年使用:0次
2016-12-03更新
|
805次组卷
|
2卷引用:2014-2015学年河北唐山一中高二下学期期末理科数学试卷
5 . 选修4-5:不等式选讲
设函数
.
(Ⅰ)若不等式
的解集为
,求
的值;
(Ⅱ)若存在
,使
,求实数a的取值范围.
设函数
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/423fe6897463415e963fbe9456849cac.png?resizew=139)
(Ⅰ)若不等式
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/df48b90655d54353a43287cdf3e63d25.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/5a8603f6bd364f6fb9ada7d0e234b004.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/4840529e3f6a40c8941ef93a5674fc77.png?resizew=13)
(Ⅱ)若存在
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/df3e118bf471492784752aa9261e0bb3.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2015/7/15/1572181905178624/1572181910896640/STEM/c648c975b193416e8263d1b6a4a5e94b.png?resizew=97)
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真题
名校
6 . 若函数
的最小值为5,则实数a=_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98935ecc5a904b7e4d1f0dc0ec4c3f0b.png)
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2016-12-03更新
|
1956次组卷
|
7卷引用:2015年全国普通高等学校招生统一考试理科数学(重庆卷)
2015年全国普通高等学校招生统一考试理科数学(重庆卷)2015-2016学年四川树德、雅安中学高一10月考试数学卷(已下线)实战演练10.2-2018年高考艺考步步高系列数学【全国百强校】新疆乌鲁木齐市第七十中学2018-2019学年高二下学期第一次月考数学(文)试题(已下线)考点37 选修部分(坐标系与参数方程、不等式选讲)-2021年新高考数学一轮复习考点扫描(已下线)专题07+不等式的求解(2)-2020-2021学年新教材高一数学秋季辅导讲义(沪教版2020)专题05函数概念与基本初等函数(第一部分)
7 . 选修4-5:不等式选讲
已知函数
,
.
(1)若关于
的不等式
的解集为
,求实数
的值;
(2)若
的图象恒在
图象的上方,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902a4c260a4ee46ea97e6e0bab0a0b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41feea40a07d3a3ad3f8b7adf22ad3bf.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac707f212005cda54aa69ec4f4d7fbe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28827c68e3b27402da8a01475375c18d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-03更新
|
579次组卷
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3卷引用:2015届黑龙江省大庆市高三第二次质量检测文科数学试卷
8 . 已知命题![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93561782677da08e4d844988368a877.png)
(1)当
时,若“p且q”为真命题,求实数
的取值范围;
(2)若非p是非q的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a93561782677da08e4d844988368a877.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若非p是非q的充分不必要条件,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a32c3f2465314f98d3c52b6ad7d1e1a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知集合
,
,则下列结论正确的是
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571977837633536/1571977843122176/STEM/14782701307e4c5ebd75b222ca30ebd8.png)
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571977837633536/1571977843122176/STEM/df6a73160e9447f598625a386cfe4ce6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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