解题方法
1 . 在正四棱锥
中,已知
,
为底面
的中心,以点
为球心作一半径为
的球,则平面
截该球的截面面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a4950a6e4202efd609507964af238b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83dbfddc6f98548699ed581e8c8608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,若方程
有四个根
,
,
,
且
,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272f0b36fdd0aa4a35ea35b08f606de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577ae7344fd256ae4c8034a4c5fc83fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2741ca619df1d9ab3d9ced4c49142dc.png)
您最近一年使用:0次
2022-01-17更新
|
3145次组卷
|
5卷引用:广西南宁市第三中学2021-2022学年高一下学期期中考试数学试题
3 . 已知函数
,其所有的零点依次记为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83517fc1823cb89bd195c243716873a4.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0deb8728fd8f14f4b176127be7e87986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96865da9987ff56ccaa0460438c32765.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83517fc1823cb89bd195c243716873a4.png)
您最近一年使用:0次
2020-02-24更新
|
1244次组卷
|
2卷引用:广西百色市2021-2022学年高一上学期期末调研测试数学试题