名校
解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2298f948c2a2aecf6f626074acf0da71.png)
(1)当
时,解不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a234b3bb2d3292921d8b30f04cd346f8.png)
(2)已知
,
,
的最小值为m,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2298f948c2a2aecf6f626074acf0da71.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a234b3bb2d3292921d8b30f04cd346f8.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c59e50c6887129e05e553be11f8ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab4ce3bcc137539cd0211fd32d5c160.png)
您最近一年使用:0次
2021-10-21更新
|
758次组卷
|
2卷引用:江苏省无锡市南菁高级中学2021-2022学年高三上学期10月阶段检测数学试题
2 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ff37ff95d0796d21b93590af4842c9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02bdb9352c3d83757dcf46cc84cd1d47.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51ea2fe6d047bc6d2c13ff4d397e8508.png)
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3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70815646896a2814f17e6478d45187ad.png)
(1)当
时,求不等式
的解集;
(2)当
时,对任意
,
恒成立,且当c取最大值时,正数m,n满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70815646896a2814f17e6478d45187ad.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea998345984b6d1bbffa1e667365ed6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3223ee118f9c7aa8b58941b5bb3b3c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa7e60c0c62fba625308c2348c8b14f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d760204a261aae858ee3e353882899.png)
您最近一年使用:0次
名校
4 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/c3037e73-47a1-495c-9d10-c5e8451ea7c8.png?resizew=250)
(1)设在平面直角坐标系中作出
的图象,并写出不等式
的解集
.
(2)设函数
,
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bb0551040c98a70641e6aee78c4e99.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/c3037e73-47a1-495c-9d10-c5e8451ea7c8.png?resizew=250)
(1)设在平面直角坐标系中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d24227741bf427e6bd73490baf3c3d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92806f646c860991ed47556ffd1169a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0879734ee766cb630cfeb3f25fea7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-05-17更新
|
922次组卷
|
5卷引用:【市级联考】云南省昆明市2019届高三高考模拟(第四次统测)文科数学试题
5 . 设函数
.
(1)求不等式
的解集;
(2)若
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0480ef7151f470b55074f698e3c4d992.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7848e4ba2b129b2a5dcb50f34b5df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-04-17更新
|
499次组卷
|
2卷引用:【市级联考】安徽省马鞍山市2019年高中毕业班第二次教学质量监测理科数学试题
6 . 已知函数
.
(1)求不等式
的解集;
(2)若不等式
的解集为空集,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bafda522863f8585b9255c17988d9d.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a9f7884d2a1a1f304d8d468d8dd47c.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a840c593c0160c93e4d307b1325eb17e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019-04-04更新
|
661次组卷
|
3卷引用:【市级联考】山东省济南市2019届高三3月模拟考试理科数学试题
名校
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492f59719c4ca10694a64369b5f1c80a.png)
.
(I)求不等式
的解集;
(II)若
,有
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492f59719c4ca10694a64369b5f1c80a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d1d67a5197e0f3a15e93869faeb5690.png)
(I)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4509817be39bef4bcde115996ee39e8.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2019-04-01更新
|
640次组卷
|
3卷引用:贵州省凯里市第一中学2019届高三下学期模拟考试《黄金卷二》数学(文)试题
8 . 已知函数
,
.
在答题卡中的平面直角坐标系里作出
的图象;
求满足
的x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3641c8d650f9529642423072d8c44d58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90391182f6073e22112df676f9c91faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0505946da034aa6b7f5fff2c8501732a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/02d4fcfe-4e32-4897-8871-b104364ac377.png?resizew=234)
您最近一年使用:0次
9 . [选修4-5:不等式选讲]
已知函数
.
(1)解不等式:
;
(2)对任意
,
恒成立,求实数
的取值范围.
已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a558f6f6022d8c47c0a72af20b001932.png)
(1)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7e672b1ae40d5370d13ced5bd02a19.png)
(2)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbfed34cfe4e56ba2e5ba4f80ce29f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2014·江苏连云港·二模
10 . 已知函数
,若函数
的图象恒在
轴上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7a3a3d999c1f3d5a4737b520096b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次