解题方法
1 . 已知函数
.
(1)当
时,解不等式
;
(2)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d9eb22a666dee9eb4a9a590dd6aafc7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e693d36b6395a0e28324c29c54151a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f999f9c9246a6d128807b138d9d15de9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc2607d8836f265bbc1b2821391194a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-05-25更新
|
190次组卷
|
3卷引用:2024届青海省西宁市大通县高考四模数学(理)试卷
名校
解题方法
2 . 已知函数
.
(1)求不等式
的解集;
(2)若函数
的最小值为
,且正数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4aac5487f0cd46559e938ff98a5cfc.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a3cfe361051dc5e9a3a36b2818db0.png)
您最近一年使用:0次
2024-05-04更新
|
376次组卷
|
4卷引用:青海省西宁市大通县2024届高三第二次模拟考试数学(文)试题
解题方法
3 . 已知函数
的最小值为8.
(1)求a;
(2)若
在
上单调递减,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd21f0a437df2d543aaf07871a930fe.png)
(1)求a;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b271bbc5946d3760cbb8e9eca1dcfcda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba81a748f6bc84219c4b8246b5fb07fb.png)
您最近一年使用:0次
2024-04-30更新
|
129次组卷
|
2卷引用:青海省部分学校2023-2024学年高三下学期联考模拟预测理科数学试题
解题方法
4 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)存在实数
,使得不等式
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bb98e3fc069452efd33465f492b8be.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9222ffc26c0e6bfbf252ab5d8a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940adbf54e96ecb2bb2637e5f976a3b0.png)
(2)存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3baa5d6729049cababe281291d5454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 已知
,函数
.
(1)当
时,解不等式
;
(2)若
的图象与
轴围成的面积小于
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a878fd5a7104a7f42770a19097d56457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892c27d7a14cad522657fc1df6245721.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)若
![](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/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-03-15更新
|
190次组卷
|
2卷引用:青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题
名校
解题方法
6 . 已知函数
.
(1)解不等式
;
(2)在直角坐标系xOy中,求不等式组
所确定的平面区域的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47ff3aeceb2373a91bf51484c7740ea.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dbd58b21a94cf93f4623c07452b102.png)
(2)在直角坐标系xOy中,求不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8931f949be93d315b37a72007ce185fb.png)
您最近一年使用:0次
解题方法
7 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5464d059e5707903609ee01ab232b38.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2231a2cda7d6f519cc88a1d07fc1c1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-20更新
|
114次组卷
|
2卷引用:青海省西宁市大通县2024届高三上学期期末数学(理)试题
解题方法
8 . 已知函数
,其中
为常数.
(1)求
的最小值;
(2)若
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4490503c29b1743ca34b05e900d8730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef118cce5443a4d794561f5ef8e1fcc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251b025e640117a755903935f833493.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)解不等式
;
(2)记函数
的最小值为
,正实数
,
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e32fe6eea89758fe843a869976d08fd.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4509817be39bef4bcde115996ee39e8.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857ce2790f14cac8a0cfecc154015237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9048a4655708ea1ff6702b4b5061975a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09824810c009fb0bdbe625fdc0c0ad6.png)
您最近一年使用:0次
2023-12-26更新
|
66次组卷
|
2卷引用:青海省西宁市大通县2024届高三上学期期中数学(文)试题
10 . 已知函数
.
(1)求不等式
的解集;
(2)若
的最小值为
,正数
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fb5235d37e0ad856b799673ca16b71.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab989f85a681b41c29465d4be74b789f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab04de6651256f6281e9f4c1dc3c7955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb73613b4b0ee13745eda42db209164a.png)
您最近一年使用:0次