名校
解题方法
1 . 已知函数
,所有满足
的点
中,有且只有一个在圆
上,则圆
的标准方程可以是_______ .(写出一个满足条件的圆的标准方程即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2393319e38bf8410bf9094af9a572cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed27a5201103062651b120c1fe20266e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2023-01-13更新
|
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|
3卷引用:江西省九江市瑞昌市第一中学2022-2023学年高二下学期期中考试数学试题
2 . 已知椭圆
:
的左、右焦点分别为
,
,点
在椭圆
上,则
的值可以是______ .(填写一个满足条件的值即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914075a4574c09bdb860d8f8f09a4e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75436dfba3658f87e4c7830e508a752f.png)
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2022-11-15更新
|
541次组卷
|
4卷引用:江西省抚州七校(广昌一中、金溪一中、乐安实验学校、黎川一中、南城二中、南丰一中、宜黄一中)2022-2023学年高二上学期联考数学试题
江西省抚州七校(广昌一中、金溪一中、乐安实验学校、黎川一中、南城二中、南丰一中、宜黄一中)2022-2023学年高二上学期联考数学试题江西省2022-2023学年高二上学期11月期中调研测试数学试题(已下线)第05讲 椭圆 (高频考点,精讲)-2(已下线)模块四 专题7 高考新题型(劣构题专训)基础夯实练(人教A)
2022高三·全国·专题练习
名校
3 . 已知
.
(1)求
的单调区间;
(2)
,若
有两个零点
,且
求证:
.(左边和右边两个不等式可只选一个证即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f012c41f78da1dd8aadae231a801cc7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613554940b48197cfb677e1b8052c06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d701d16d9f318ee8fa779f5b961d64c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa31d1eb9d369385abf7568355e0ed9.png)
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名校
解题方法
4 . 建在水源不十分充足的地区的火电厂为了节约用水,需建造一个循环冷却水系统(冷却塔),以使得冷却器中排出的热水在其中冷却后可重复使用.下图是世界最高的电厂冷却塔——中国国家能源集团胜利电厂冷却塔,该冷却塔高225米,创造了“最高冷却塔”的吉尼斯世界纪录.该冷却塔的外形可看作双曲线的一部分绕其虚轴旋转所成的曲面,如图:已知直线
,
为该双曲线的两条渐近线,
,
向上的方向所成的角的正切值为
,则该双曲线的离心率为( )
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734397734912/2926951012204544/STEM/34bd36bbb6ca4650866662735c8f75dd.png?resizew=141)
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734397734912/2926951012204544/STEM/b9cf0f4243ee43cb82cce081a8cb657c.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f16d09692f7b0fb5633964437202d21d.png)
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734397734912/2926951012204544/STEM/34bd36bbb6ca4650866662735c8f75dd.png?resizew=141)
![](https://img.xkw.com/dksih/QBM/2022/2/23/2922734397734912/2926951012204544/STEM/b9cf0f4243ee43cb82cce081a8cb657c.png?resizew=142)
A.![]() | B.5 | C.![]() | D.![]() |
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2022-03-04更新
|
579次组卷
|
6卷引用:江西省赣州市赣县第三中学2021-2022学年高二3月月考数学(理)试题
名校
解题方法
5 . 如图,某款酒杯的容器部分为圆锥,且该圆锥的轴截面为面积是
的正三角形.若在该酒杯内放置一个圆柱形冰块,要求冰块高度不超过酒杯口高度,则酒杯可放置圆柱形冰块的最大体积为( )
![](https://img.xkw.com/dksih/QBM/2022/3/15/2936758246793216/2938005037867008/STEM/4400fa80-df61-4931-841a-c358af15043e.png?resizew=100)
![](https://img.xkw.com/dksih/QBM/2022/3/15/2936758246793216/2938005037867008/STEM/aa7370b9-0b86-4117-b438-e1c07d19f728.png?resizew=162)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45783c95e76c029872f9ff307572a03c.png)
![](https://img.xkw.com/dksih/QBM/2022/3/15/2936758246793216/2938005037867008/STEM/4400fa80-df61-4931-841a-c358af15043e.png?resizew=100)
![](https://img.xkw.com/dksih/QBM/2022/3/15/2936758246793216/2938005037867008/STEM/aa7370b9-0b86-4117-b438-e1c07d19f728.png?resizew=162)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-03-17更新
|
883次组卷
|
5卷引用:江西省南昌市第十五中学等名校2021-2022学年高二3月联考数学(文)试题
江西省南昌市第十五中学等名校2021-2022学年高二3月联考数学(文)试题(已下线)1.3.4 导数的应用举例(同步练习)2022-2023学年高二选择性必修第二册素养提升检测(基础篇)陕西省榆林市2022届高三下学期二模文科数学试题贵州省名校联盟2022届高三3月大联考数学(文)试题山西省太原市第五中学校2022届高三下学期5月阶段性检测数学(文)试题
6 . 给出下列几个命题:
①命题
任意
,都有
,则
”:存在
,使得
.
②命题“若
且![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/1f8aee01d0a54edd92b491df11ba5cfc.png)
且
”的否命题为假命题.
③空间任意一点
和不共线的三点
、
、
,若
,则
、
、
、![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/3e2a340c5ac342648b03b513a6c7e395.png)
四点共面.
④线性回归方程
对应的直线一定经过其样本数据点
、
、…,
中的一个.
其中不正确的个数为
①命题
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/e38866a16bba4113a5524226ea30c057.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/62e057f10d9a43eaa3683f1138571b57.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/88626f2fa51e4310abe08f1dccc080f8.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/baf3a1ec1a4841b7becebc67e9e43909.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/6df24cd16f6544da9453c2dec8bd3d9d.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/3a2a588e364143ff8c222d4a8eb0a1a1.png)
②命题“若
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/12a28480ade84049bbdba88aa006d567.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/1f8aee01d0a54edd92b491df11ba5cfc.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/6a7dd34aebbc4c428235c04b0fee75d7.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/948a5172f32f4b609a1d71e169507527.png)
③空间任意一点
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/43dc44a2fd8148faa74fb656bb21bdac.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/f13a75cf8fcc4c9c8368fcad505c0cac.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/02f4868789d04ad3b0e8ef63259c44be.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/3e2a340c5ac342648b03b513a6c7e395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7d02a82790eaa113fc0ba667e84038.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/d25acdd40c394b15b0e2c7f1ea50f741.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/f13a75cf8fcc4c9c8368fcad505c0cac.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/02f4868789d04ad3b0e8ef63259c44be.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/3e2a340c5ac342648b03b513a6c7e395.png)
四点共面.
④线性回归方程
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/8a9575f2d3de4ce4ad88d48b4529de67.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/b7ac535a88d645beb129b093b2b01c56.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/22d22ec86b8540c3b12c778a873c878e.png)
![](https://img.xkw.com/dksih/QBM/2017/1/6/1619445101486080/1619445101740032/STEM/4bfa31b001274f04bbddd63113bb5b0f.png)
其中不正确的个数为
A.![]() | B.![]() | C.![]() | D.![]() |
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