1 . 已知点
是直线
上一动点,过点
作圆
的一条切线,切点为
,则线段
长度的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32c935806559b1a913a7edb3c804999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b335d78eccb3037927064aa7322e6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2024-03-21更新
|
649次组卷
|
3卷引用:四川省宜宾市2024届高三下学期第二次诊断性考试理科数学试卷
名校
2 . 已知椭圆
的左、右焦点分别为
,过
的直线
与椭圆
交于
两点,过
作直线
与直线
垂直且与直线
交于
.
(1)当直线
与
轴垂直时,求
内切圆半径;
(2)分别记
的斜率为
,证明:
成等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff1455a4045eb93f482c0751840aea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
(2)分别记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a80b62fe7360f0392ca75daaac13c210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
您最近一年使用:0次
2022-03-25更新
|
1277次组卷
|
6卷引用:四川省内江市第六中学2023届高三下学期高考模拟数学(文科)热身训练(一)试卷
解题方法
3 . 已知直线
经过点
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb6dde0e859ac36688cb48523e2b8be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69abe959988e4c8c0739f5857ccfb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4741556c029b5811318746d837cf246.png)
A.4 | B.8 | C.9 | D.![]() |
您最近一年使用:0次
4 . 已知
为圆
上一动点,则点
到直线
的距离的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7753760f111ca693c6167e17ad5893d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04836ba2906cf6f1e9aecd2a00824aae.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-07-16更新
|
2102次组卷
|
9卷引用:四川省成都市2022届高三文科数学零诊考试试题
四川省成都市2022届高三文科数学零诊考试试题四川省成都市2022届高三理科数学零诊考试试题(已下线)专题10 《直线和圆的方程》综合测试卷 - 2021--2022高二上学期数学新教材配套提升训练(人教A版2019选择性必修第一册)(已下线)模块综合练02 解析几何-2022年高考数学(文)一轮复习小题多维练(全国通用)(已下线)考向38 圆的方程(已下线)专题2.13 直线与圆的位置关系-重难点题型精讲-2021-2022学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)第16讲 直线与圆的位置关系-【帮课堂】(已下线)专题05 平面解析几何(选择题、填空题)-备战2022年高考数学(理)母题题源解密(全国甲卷)(已下线)专题09 平面几何与向量-备战2022年高考数学(文)母题题源解密(全国乙卷)
5 . 动直线l:
被圆C:
截得弦长的最小值为______________________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de24e3d618264806ab785a935f644900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5058b31a3cd6b32597be35a64950b9b7.png)
您最近一年使用:0次
2024-04-22更新
|
653次组卷
|
2卷引用:四川省泸州市2024届高三第三次教学质量诊断性考试(理科)数学试题
名校
解题方法
6 . 已知
,
.
(1)若
,求不等式
的解集;
(2)
,若
图象与两坐标轴围成的三角形面积不大于2,求正数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c7d5453d825b79a12635cbe51d82da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3458d3976812f9673db54b8df0e34b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2023-03-19更新
|
633次组卷
|
8卷引用:四川省宜宾市南溪第一中学校2024届高三上学期一诊考试理科数学模拟试题
四川省宜宾市南溪第一中学校2024届高三上学期一诊考试理科数学模拟试题陕西省咸阳市2023届高三下学期二模文科数学试题陕西省咸阳市2023届高三下学期二模理科数学试题陕西省咸阳市2023届高三二模数学(文)试题陕西省咸阳市2023届高三模拟(二)数学(理)试题(已下线)模拟检测卷03(理科)(已下线)模拟检测卷03(文科)(已下线)信息必刷卷01(理科专用)
解题方法
7 . 抛物线
的焦点为F,直线
与C交于A,B两点,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04836ba2906cf6f1e9aecd2a00824aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
A.4 | B.8 | C.12 | D.16 |
您最近一年使用:0次
2023-02-23更新
|
612次组卷
|
3卷引用:四川省大数据精准教学联盟2023届高三第一次统一监测文科数学试题
名校
解题方法
8 . 已知椭圆
:
的长轴长是短轴长的两倍,且过点
.
(1)求椭圆
的方程.
(2)设椭圆
的下顶点为点
,若不过点
且不垂直于坐标轴的直线
交椭圆
于
,
两点,直线
,
分别与
轴交于
,
两点.若
,
的横坐标之积是2,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f4aad2e5282f87f561e6aa91d0a32a.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-03-25更新
|
1242次组卷
|
6卷引用:四川省南充高级中学2022-2023学年高三上学期第二次模拟考试数学文科试题
名校
9 . 过点
的直线
与拋物线
交于点
,
(
在第一象限),且当直线
的倾斜角为
时,
.
(1)求抛物线的方程;
(2)若
,延长
交抛物线
于点
,延长
交
轴于点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954714542aac9d406fd2a2ee6af75c0f.png)
(1)求抛物线的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4cd358a3ec6f4b6a29e758db84de085.png)
您最近一年使用:0次
2023-04-23更新
|
604次组卷
|
4卷引用:四川省绵阳市2023届高三三模文科数学试题
四川省绵阳市2023届高三三模文科数学试题四川省成都市川大附中新城分校2024届高三下学期开学考试数学(理)试题江西省全南中学2022-2023学年高二下学期期中数学试题(已下线)重难点突破06 弦长问题及长度和、差、商、积问题(七大题型)-1
10 . 唐代诗人李颀的诗《古从军行》开头两句是“白日登山望烽火,黄昏饮马傍交河”.诗中隐含着一个有趣的数学问题——“将军饮马”问题,即将军在观望烽火之后从山脚下某处出发,先到河边饮马后再回军营,怎样走才能使总路程最短?在平面直角坐标系中,设军营所在区域为
,若将军从点
处出发,河岸线对应的直线方程为x+y=2,并假定将军只要到达军营所在区域即回到军营,则“将军饮马”问题中的最短总路程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dccf7fdc9ff5e9e6ed897ec3a716a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e94852797399ba119b090fa957ee3a9.png)
A.6 | B.5 | C.4 | D.3 |
您最近一年使用:0次