1 . 设集合
中的最大元素与最小元素分别为M,N,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38faaabb5350ab23a42c52d78d38e1b.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a174cf6a04826e10a6d50abc117f9e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38faaabb5350ab23a42c52d78d38e1b.png)
您最近一年使用:0次
2 . 如图,点M、N分别在△ABC的边AB、AC上,且
,
,D为线段BC的中点,G为线段MN与AD的交点.若
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637ead8ff2c33546dc4b7ae439d3cffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e73df9bd672a72bd945449a606cbd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3235f0f3c3faa679c2e9420d298a1f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2be5e24170427caed4175e2863995aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/66865588-9b96-4f15-8040-cab6d1f93f20.png?resizew=176)
您最近一年使用:0次
3 . 对于三元基本不等式请猜想:设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec197b8ab457cfee3d4733f3d7f8d6f3.png)
_________ ,当且仅当
时,等号成立(把横线补全).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec197b8ab457cfee3d4733f3d7f8d6f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44acc0ee22dc4b7750e8be825e7c1355.png)
您最近一年使用:0次
2006高三·四川·竞赛
名校
4 . 函数
的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f83aba4e17c261db62b9b84e4b65f3f.png)
您最近一年使用:0次
名校
5 . 若
、
、
、
、
、
为实数,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ad73f2e0c8e6128c8297238e11a420.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7eda991941a23cc5aca2813062167e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ad73f2e0c8e6128c8297238e11a420.png)
您最近一年使用:0次
2018-12-20更新
|
182次组卷
|
2卷引用:陕西省西安市第三中学2022-2023学年高二上学期期中数学试题