名校
解题方法
1 . 在平面直角坐标系中,已知点A坐标为
,若动点P位于y轴右侧,且到两定点
,
的距离之差为定值4,则
周长的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c865504bae15a800afe6fa5b635d7820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f24ad677d24612c937448cb583614d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3377c0c2bcd334a93133cdd37f34ed88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa65e9e7125c4bd360cf71ea4439e2c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 已知圆
和两点
为圆
所在平面内的动点,记以
为直径的圆为圆
,以
为直径的圆为圆
,则下列说法一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51c2a5f44e72ae2911b2039fd4e8d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.若圆![]() ![]() ![]() ![]() |
B.若圆![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-04-08更新
|
410次组卷
|
3卷引用:安徽省池州市普通高中2024届高三教学质量统一监测数学试题
名校
解题方法
3 . 已知双曲线
的左、右焦点为
,点
在双曲线
的右支上.且
,三角形
的面积为
.
(1)求双曲线
的方程;
(2)已知直线
与
轴交于点
,过
作斜率不为
的直线
,直线
交双曲线
于
两点,直线
交双曲线
于
两点.直线
交直线
于点
,直线
交直线
于点
.试证明:
为定值,并求出该定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2785dfd8cbd016613bb43e7ed29767a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72a557844c4c39024293dfa2b23abed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450f820d4598d103c374bee7d2690579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5a8e1bc9748e5519dcd9981b7eb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11449658adfc07dcf4fc0b25e7ed7c9.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea1f72fe75d04d0ea3b605ac87e290d.png)
您最近一年使用:0次
名校
解题方法
4 . 在平面直角坐标系xOy中,圆
:
,
,P是圆
上的一个动点,线段
的垂直平分线l与直线
交于点M.记点M的轨迹为曲线C.
(1)求曲线C的方程;
(2)过点
作与x轴不垂直的任意直线交曲线C于A,B两点,线段AB的垂直平分线交x轴于点H,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f269f3d5e4148989d8897efa29cc60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd15503ee692f8286b0312f7c6f0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
(1)求曲线C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86e5b2982a62ecd2d6c69e676c4ac76.png)
您最近一年使用:0次
2023-08-05更新
|
728次组卷
|
2卷引用:福建省宁德市博雅培文学校2023届高三高考前最后一卷数学试题
名校
解题方法
5 . 设
,圆
(
为圆心),
为圆
上任意一点,线段
的中点为
,过点
作线段
的垂线与直线
相交于点
.当点
在圆
上运动时,点
的轨迹为曲线
,点
的轨迹为曲线
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b07fcbd95c0c3cea149953935b63b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42eea4c13fc3d9033a183c24a8385557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.曲线![]() ![]() | B.当点![]() ![]() ![]() ![]() |
C.曲线![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
6 . 双曲线的光学性质如下:如图1,从双曲线右焦点
发出的光线经双曲线镜面反射,反射光线的反向延长线经过左焦点
.我国首先研制成功的“双曲线新闻灯”,就是利用了双曲线的这个光学性质.某“双曲线灯”的轴截面是双曲线一部分,如图2,其方程为
分别为其左、右焦点,若从右焦点
发出的光线经双曲线上的点
和点
反射后(
在同一直线上),满足
.
(1)当
时,求双曲线的标准方程;
(2)过
且斜率为2的直线与双曲线的两条渐近线交于
两点,点
是线段
的中点,试探究
是否为定值,若不是定值,说明理由,若是定值,求出定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6f05de8a75650b53e2238ed8efaf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8994a55ea8ef036dd1d3504c9830ff56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4225b4f584708b614453fb5876f6a4f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/4/58286785-5710-457d-9730-260ad57675f6.png?resizew=380)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe7fd9b0c3c203a053a7ea52b71e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df68611c0b08d2a333672c7743f362c0.png)
您最近一年使用:0次
解题方法
7 . 中国是纸的故乡,折纸也是起源于中国.后来数学家将几何学原理运用到折纸中,并且利用折纸来研究几何学,很好的把折纸艺术与数学相结合.将一张纸片折叠一次,纸片上会留下一条折痕,如果在纸片上按照一定的规律折出很多折痕后,纸上能显现出一条漂亮曲线的轮廓.如图,一张圆形纸片的圆心为点D,A是圆外的一个定点,P是圆D上任意一点,把纸片折叠使得点A与P重合,然后展平纸片,折痕与直线DP相交于点Q,当点P在圆上运动时,得到点Q的轨迹.
(1)证明:点Q的轨迹是双曲线;
(2)设定点A坐标为
,纸片圆的边界方程为
.若点
位于(1)中所描述的双曲线上,过点M的直线l交该双曲线的渐近线于E,F两点,且点E,F位于y轴右侧,O为坐标原点,求
面积的最小值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/1/45200301-744c-4784-a52d-8a5e4268a2b3.png?resizew=153)
(1)证明:点Q的轨迹是双曲线;
(2)设定点A坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2572ee7766efafc1c50eb798dc7c1a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc44797d05f315cb4ae3967ec32262a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14aeac55d519010de23642ac22cfb0b.png)
您最近一年使用:0次
2023·上海浦东新·模拟预测
名校
8 . 已知平面上的点
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c33f815004ac8d0d569af555c66ff00.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63368fb5c4feebe59c81bd5c90d8eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6edb9940bd0cb006572825fce0f3377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c33f815004ac8d0d569af555c66ff00.png)
您最近一年使用:0次
解题方法
9 . 已知
是圆
上一动点,定点
,线段
的垂直平分线
与直线
交于点
,记点
的轨迹为
.
(1)求
的方程;
(2)若直线
与曲线
恰有一个共点,且
与直线
,
分别交于
、
两点,
的面积是否为定值?若是,求出该定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0f6f97b2d02512531f84f23bd1c75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a0d4c22734cac795de1e5c5fbefa87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2673918137c8a5f6f1c87cf88bd3ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8445757e5a2ca169e2b0b8c66bc2f73b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
您最近一年使用:0次
解题方法
10 . 已知
,过
斜率为
的直线上存在不同的两个点
满足:
.则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9c11cc36320090d0aaf0c621a63b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6951479694aec937a712901634a5a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b920183d83c468baef257aa0628d2f75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-05-06更新
|
553次组卷
|
4卷引用:安徽省淮北市2023届高三二模数学试题