名校
解题方法
1 . 已知函数
,若关于
的不等式
恒成立,则实数
的取值范围( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a7c2664e813267c525d6e5954a0f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-20更新
|
665次组卷
|
3卷引用:河南省洛阳市新安县第一高级中学2022-2023学年高三上学期入学测试理科数学(实验小班)试题
河南省洛阳市新安县第一高级中学2022-2023学年高三上学期入学测试理科数学(实验小班)试题四川省绵阳中学2023届高三适应性考试(二)理科数学试题(已下线)专题06 函数与导数常见经典压轴小题归类(练习)-2
名校
2 . 已知函数
.
(1)若函数
有一个零点,求k的取值范围;
(2)已知函数
,若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b0849b2ef05aba39b44c0683f91779.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428d922e63d8a0838da6fdacee919ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb9a0af43fef8df0f6b72b75216d8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2022-09-13更新
|
699次组卷
|
3卷引用:河南省豫东名校2022-2023学年上学期新高三摸底联考理科数学试题
解题方法
3 . 如图,在
中,
,
,
是
的角平分线,沿
将
折起到
的位置,使得平面
平面
.若
,则三棱锥
外接球的表面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/145fdd06-c175-42c3-847a-62f5c5c1558d.png?resizew=432)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7777a27259d26724229b604df42656c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1be17e0a3e51cde1f50f384198e71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172f1b400d9ddec4ea01f6fd040b3802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10211cd11867a47707eda04e4c2b56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b405c9eab2016f4f86831e985ea789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb4c6e9a723aa843e6ba62d7c1a3a6c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/145fdd06-c175-42c3-847a-62f5c5c1558d.png?resizew=432)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-02-13更新
|
778次组卷
|
4卷引用:河南省2021-2022学年高三下学期开学考试数学文科试题
河南省2021-2022学年高三下学期开学考试数学文科试题河南省重点高中2021-2022学年高三下学期阶段性调研联考二文科数学试题(已下线)专题8-1 外接球-2(已下线)第三章 折叠、旋转与展开 专题三 球与翻折 微点3 球与翻折综合训练
4 . 如图,在棱长为
的正方体
中,
是棱
的中点,
是侧面
内的动点(包括边界),且
,则
的最小值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b587529cbb19f9a9517303ab028a522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155e03cb1ff9d644581d36f0d00da4d7.png)
![](https://img.xkw.com/dksih/QBM/2019/7/8/2242572032024576/2242612619468800/STEM/c227418e-54e1-4088-bace-d8f433bcb255.png?resizew=255)
您最近一年使用:0次
2019-07-08更新
|
702次组卷
|
3卷引用:河南省安阳县实验中学2022-2023学年高二上学期收心考数学理科试题
名校
5 . 已知抛物线
,其准线与
轴的交点为
,过焦点
的弦交抛物线于
两点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaba88a826c2b91e1fafe1b705602c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c6b242096be9b5f75daf95be75c232.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-02-03更新
|
421次组卷
|
2卷引用:河南省平顶山市郏县第一高级中学2021-2022学年高二下学期开学收心考试数学(理)试题