2023高三·全国·专题练习
1 . 在实数集内解方程组
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b296a3daf2901a443a47a4779e552306.png)
您最近一年使用:0次
解题方法
2 . 已知函数
.
(1)解关于
的不等式
;
(2)若
的最小值为
,且正数
,
满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae283490f6e021b1129b85d0b313419.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5229bf257fabd4342f0e46d0260fd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/c6e0a2cafbf15afb2672ddc89b0059a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
您最近一年使用:0次
2023-05-07更新
|
303次组卷
|
2卷引用:广西桂林市、北海市2023届高三联合模拟考试数学(文)试题
解题方法
3 . 已知函数
的最小值为
.
(1)解关于
的不等式
;
(2)若正数
满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae283490f6e021b1129b85d0b313419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee3f877198ec8044be00fe7251128ca.png)
(2)若正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e0a2cafbf15afb2672ddc89b0059a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
.
(1)解关于x的不等式
;
(2)记
的最小值为m,若a、b、c都是正实数,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/871277a8da61d6fe807ad181279e0948.png)
(1)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b781b577380833bf91d2b2f1169c50.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4dffe7e37fb8e6fd0ef1a8de82e8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c13349814250ec5c66d7b9387a13ac0.png)
您最近一年使用:0次
2023-04-28更新
|
205次组卷
|
3卷引用:四川省泸州市泸县泸县第五中学2022-2023学年高二下学期期末数学理科试题
2022高三·全国·专题练习
解题方法
5 . 已知函数
.
(1)解关于
的不等式
;
(2)记
的最小值为
,已知实数
、
、
都是正实数,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e25d2e7171f37c4159bcc52649e14e.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b781b577380833bf91d2b2f1169c50.png)
(2)记
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4dffe7e37fb8e6fd0ef1a8de82e8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c13349814250ec5c66d7b9387a13ac0.png)
您最近一年使用:0次