解题方法
1 . 已知焦点在
轴上的等轴双曲线
的左、右顶点分别为
,且
到
的渐近线的距离为
,直线
与双曲线
的左、右支分别交于点
(异于点
).
(1)当
时,证明:以
为直径的圆经过
两点.
(2)设直线
的斜率分别为
,若点
在双曲线
上,证明
为定值,并求出该定值.
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddfa25e097562b856ddd5e7c0758ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eca6fdbeed6aa003a060697b4cf65d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
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名校
2 . 当实数
变化时,关于
的方程
可以表示的曲线类型有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d708cb763716467219215cdc0782c0a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a1c0f74882d6dc5360787dd9a8a4aa2.png)
A.直线 | B.圆 | C.椭圆 | D.双曲线 |
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2024-02-20更新
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2卷引用:广东省实验中学深圳学校、深圳外国语学校龙华高中部2023-2024学年高二上学期期末联考数学试卷
解题方法
3 . 过圆
外一点
作圆
的两条切线,切点为
,则
的最小值为_______________ ,此时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec03bed5c6a80c31b54acb23930ebdf.png)
________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287bf04c01636b32de0d73a100dce704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab79339b23db0c52bda36194abe1a8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec03bed5c6a80c31b54acb23930ebdf.png)
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4 . 已知
,直线
为
上的动点.过点
作
的切线
,切点分别为
,当
最小时,点
的坐标为__________ ,直线
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca7516825c36fe07c9350da42efda17e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eda5b56749384035dff39db6dd30482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9ce08214287236b3eb3f490a15e28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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|
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6卷引用:辽宁省县级重点高中协作体2023-2024学年高二上学期期末数学试题
辽宁省县级重点高中协作体2023-2024学年高二上学期期末数学试题河南省南阳地区2023-2024学年高二上学期期末热身摸底联考数学试题贵州省黔东南州2023-2024学年高二上学期期末检测数学试题湖南省张家界市民族中学2023-2024学年高二下学期入学考试数学试题(已下线)专题1 直线与圆的位置关系【练】(压轴小题大全)(已下线)专题2 与圆有关的最值问题【讲】(压轴小题大全)
名校
5 .
是
边
上的点,其中
,且
.则
面积的可能取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd3c2833e3ac88f010875da764eadeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688fc97be17a834a4122acc1113a7afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-31更新
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1474次组卷
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3卷引用:湖南省长沙市长郡中学2024届高三上学期月考数学试题(五)
名校
6 . 圆M:
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca2415dee662897b676734cfc768d66.png)
A.点![]() | B.圆M关于直线![]() |
C.圆M的半径为2 | D.直线![]() |
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5卷引用:浙江省宁波三锋教研联盟2023-2024学年高二上学期期中联考数学试题
名校
解题方法
7 . 已知点
是圆
上任意一点,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aff72e5dfa08dc5631842358b5067391.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2023-09-21更新
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1663次组卷
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7卷引用:四川省岳池中学2023届高三上学期10月月考理科数学试题
四川省岳池中学2023届高三上学期10月月考理科数学试题(已下线)考点04 圆的方程求解 2024届高考数学考点总动员【练】(已下线)专题02 直线和圆的方程(5)福建省莆田市第二十五中学2023-2024学年高二上学期期末数学试题(已下线)圆 与方程(已下线)重难点7-1 圆的最值与范围问题(8题型+满分技巧+限时检测)(已下线)专题2 与圆有关的最值问题【讲】(压轴小题大全)
8 . 已知抛物线:
的焦点为
,准线为
,过焦点
作直线
交抛物线于
、
两点.
(1)过点
作直线
的垂线,垂足为
,若
在
上的数量投影为
,求
的面积;
(2)设直线
交
轴于点
,若
,
,求
的值;
(3)设
为坐标原点,直线
、
分别与
相交于点
、
.试探究:以线段
为直径的圆
是否过定点,若是,求出定点的坐标;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32e577ae1f4449efbd64c1199efe7a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
(1)过点
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e065fbbc5c8160545b51f50b2a9606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d1b8ba85e9c587cdcb9778a7f081ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9374cdec65a41dc616f6f099551880d6.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21b9ea27268b1d4369a0c4f39e7e5d1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d26a703a67b894a77e2eb3050fd9251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
9 . 已知抛物线
过点
为坐标原点.
(1)直线
经过抛物线
的焦点,且与抛物线
相交于
两点,若弦
的长等于6,求
的面积;
(2)抛物线
上是否存在异于
的点
,使得经过
三点的圆
和抛物线
在点
处有相同的切线,若存在,求出点
的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402365aeb523fd88a62ae002f8ba2bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e6d29471b68ef86892b9991e765b1a.png)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(2)抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef19f98e86ae7504671413780b3b1a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3421e6965c86b4cca2a503385b3cc156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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2023-05-04更新
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名校
10 . 已知方程
,其中
.现有四位同学对该方程进行了判断,提出了四个命题:
甲:可以是圆的方程; 乙:可以是抛物线的方程;
丙:可以是椭圆的标准方程; 丁:可以是双曲线的标准方程.
其中,真命题有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858ac876fe76df041e8686fa6c8e35b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1234f44bb6357aab40d51684d66b25e.png)
甲:可以是圆的方程; 乙:可以是抛物线的方程;
丙:可以是椭圆的标准方程; 丁:可以是双曲线的标准方程.
其中,真命题有( )
A.1个 | B.2个 | C.3个 | D.4个 |
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2023-04-19更新
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9卷引用:广东省佛山市2023届高三二模数学试题
广东省佛山市2023届高三二模数学试题(已下线)专题01 集合与常用逻辑用语(已下线)专题06 解析几何专题01集合与常用逻辑用语专题17平面解析几何(单选题)(已下线)第05讲 椭圆及其性质(八大题型)(讲义)-1福建省泉州市2023-2024学年高二上学期期末适应性练习数学试题山东省青岛市第五十八中学2024届高三上学期期末数学试题广东省广州市执信中学2024届高三下学期教学情况检测(二)数学试题