名校
1 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7f2341f059f6703d1f7bbdcfdb5d74.png)
A.![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-09-30更新
|
692次组卷
|
5卷引用:海南省2021-2022学年高二下学期学业水平期中考试数学试题
海南省2021-2022学年高二下学期学业水平期中考试数学试题河北省保定市2023届高三二模数学试题(已下线)专题23 导数及其应用小题(已下线)2024年高考数学全真模拟卷02河北省石家庄二中2023-2024学年高二下学期3月月考数学试题
名校
解题方法
2 . 已知点
在椭圆
上,且点Q到椭圆C两焦点的距离之和为
.
(1)求椭圆C的方程;
(2)设圆
上任意一点P处的切线l交椭圆C于
,
两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edd12f4603aa61f46310c45a9984b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求椭圆C的方程;
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96d13080edccb0bc63a7218bb0f1404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8198c3b302b3820e86763428eb1e91cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3463ced6030af957f13f9ba05b977c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
您最近一年使用:0次
3 . 若函数
满足
,当
时,
,若在区间
上,
有两个零点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8df1f1dbc0a2e8b771f17cb59738c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e44284cb19805a584880a686ac3df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84d41b94678bd8e3c114f40adb5425c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab166615f6a41dd151115392bcbdbf04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 在平面直角坐标系
中,已知椭圆
:
经过点
,离心率
.
(1)求椭圆
的方程;
(2)若直线
与圆
相切,且与椭圆
交于
两点,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc57dc8cf8c1dea629e7e56847ce5e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
解题方法
5 . 将四棱锥
沿棱展开为平面图形,如图所示.若
,
,
,
,
,
,则在展开图中,
两点之间的距离![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9214112843303e45a4d9dc20507ed1.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e07a099bf87e471b94bc97f0249daf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074a5b4d376ae0d7648d97b79be0b65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d829c51c819076d094facd9dffe2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b7efcc776e3479d01484cd468c6894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa5088fedf996af3d7c50a39bdaae73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be94b5ac27724cd0e43541759203784e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0698ef3a8f862a82245d97691eba628f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9214112843303e45a4d9dc20507ed1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/c6cb2c6f-7ab3-445d-8449-1c3850cd7f7f.png?resizew=171)
您最近一年使用:0次
6 . 已知函数
.
(1)求曲线
在
处的切线方程;
(2)若函数
有且只有一个零点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47afd5f0891656e9ae3ed04020d9ade5.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c9c3679f39a2d89bd5c4859288dbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7 . 已知函数
,
.
(1)讨论
的单调性;
(2)当
时,讨论
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86a4140516618ae7e00e1907aaa428f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e5ff2705eb737adef9a6dc70559d79.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
解题方法
8 . 已知数集
具有性质
:对任意的
,
,
,使得
成立.
(1)分别判断数集
与
是否具有性质
,并说明理由;
(2)若
,求
中所有元素的和的最小值并写出取得最小值时所有符合条件的集合
;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc95c7daae935cccf8666865cba9eea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd446b1c54b898bba5260537f1b30db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48d21d10197c3d078db9d1ac9293e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce133aca7a46be0dd5e055096addebac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1e76d1341e8e6bd89b7075150536bd.png)
(1)分别判断数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997bbd93dff19a5dba79bcd9d92f3129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13470c4e9665748fdd20d0b181abc8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a94ec87afbc073e077f2c453a304b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fcc8350d2ed52931f48b8b5ca11215.png)
您最近一年使用:0次
2024-02-24更新
|
149次组卷
|
2卷引用:北京市第十九中学2022-2023学年高一上学期(10月月考)期中练习(一)数学试题
解题方法
9 . 已知直三棱柱
的底面为正三角形,
是侧棱
上一点,且
,则三棱锥
外接球的体积为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8fed0e9b4027890a0cc13d51253d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9499f0e312799d87f5377f30565abc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc27121b923731da934338667acd1e6c.png)
您最近一年使用:0次
解题方法
10 . 如图,在平面直角坐标系
中,过
上的点
作切线
,
分别与直线
,
交于点
,圆
与
轴交于点
.
(1)若
点坐标是
,求直线
的方程;
(2)若
是圆
上的动点,证明:两条动直线
的交点
总在同一个椭圆
上,并求出椭圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a327470311e876d8489eeb8c66435dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da322ac8867e8a47c6588601078abf18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf2917e77945b30da7be9b48b0b317a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9454e7762d6924d4a9e5dcf31fb6bc74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf639890f27a42e1383cc6cfa14117a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/d55806ac-c399-4b9c-b012-1d4e5c5bbf3a.png?resizew=180)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceff0e7d103475c3ba9a2712f373185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7040823265da65a030f0c81f3ae7ddd0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37254351125380127823c0fd7d95458d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7040823265da65a030f0c81f3ae7ddd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
2024-02-23更新
|
91次组卷
|
2卷引用:中原名校2022年高三上学期第一次精英联赛文科数学试题