名校
解题方法
1 . 已知抛物线
的焦点为
,直线
交抛物线于
两点,
为抛物线
的准线与
轴的交点,直线
分别交抛物线于
两点(点
异于点
,
),
为坐标原点,则实数
的取值范围为__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b21b94a2bb768ccbc65c33f9c4ed923.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c654f3bb56ece42d29a9f14cca37bf40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eb2d74932ede98011219d319f5b9995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b21b94a2bb768ccbc65c33f9c4ed923.png)
您最近一年使用:0次
名校
解题方法
2 . 在平面直角坐标系xOy中,
为曲线
上任意一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1fc7467034cd54ad48d03ddeeb4dec8.png)
A.E与曲线![]() | B.P点不可能在圆![]() |
C.满足![]() ![]() | D.P到x轴的最大距离为![]() |
您最近一年使用:0次
2024-06-04更新
|
267次组卷
|
3卷引用:甘肃省武威第六中学2023-2024学年高三下学期第五次诊断数学试卷
3 . 已知椭圆
过点
,离心率为
.不过原点的直线
交椭圆
于
两点,记直线
的斜率为
,直线
的斜率为
,且
.
(1)求椭圆
的方程;
(2)证明:直线
的斜率
为定值;
(3)求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d23fc512ad69a2d5919ce690407704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.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/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a350d44bf2b7ddfbfe23c754efa9c8d4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
您最近一年使用:0次
2024-05-27更新
|
963次组卷
|
2卷引用:甘肃省兰州市西北师大附中2024届高三第五次诊断考试(三模)数学试题
4 . 在平面直角坐标系
中,动点
(
)与定点
的距离和
到直线
:
的距离之比是常数
.
(1)求动点
的轨迹方程;
(2)记动点
的轨迹为曲线
,过点
的直线
与曲线
交于
两点,直线
与曲线
的另一个交点为
.
(i)求
的值;
(ii)记
面积为
,
面积为
,
面积为
,试问
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/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.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/3d599059e6b2c918ab15ee22611b6962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)记动点
![](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/a25fe3ff55350310998d3d4f0048b45a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53095716c043abb9dd391b3f6e17830.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7783506c9069a5b3c88597a9c8b2f9e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307569acb68c533e026a1f09c6328833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddfea610328ce7f943de71550c743e1.png)
您最近一年使用:0次
2024-05-27更新
|
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|
2卷引用:甘肃省兰州市第五十八中学2024届高三第二次高考仿真考试数学试题
名校
解题方法
5 . 已知
为坐标原点
为椭圆
上三点,且
,
,直线
与
轴交于点
,若
,则
的离心率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139951f15d4e3d4b2439014ade6a53ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e382a7ddf35397c2b5e722b345b507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5640b18cf5f9aaa9e6b35d03b7c33d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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名校
解题方法
6 . 已知双曲线
的右焦点为F,左、右顶点分别为M,N,点
是E上一点,且直线PM,PN的斜率之积为
.
(1)求
的值;
(2)过F且斜率为1的直线l交E于A,B两点,O为坐标原点,C为E上一点,满足
,
的面积为
,求E的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef66f4832adc43902055a7e6d258037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa6ab62d5af32aa8686c5233ffda499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
(2)过F且斜率为1的直线l交E于A,B两点,O为坐标原点,C为E上一点,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914663491e35a2f9f333b0e70594bf0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e609d7f5a3b904e30f43fbbc26033d7.png)
您最近一年使用:0次
2024-05-22更新
|
259次组卷
|
2卷引用:甘肃省武威第六中学2023-2024学年高三下学期第五次诊断数学试卷
解题方法
7 . 曲线的曲率是描述几何弯曲程度的量,曲率越大,曲线的弯曲程度越大.曲线在点M处的曲率
(其中
表示函数
在点M处的导数,
表示导函数
在点M处的导数).在曲线
上点M处的法线(过该点且垂直于该点处的切线的直线为曲线在此处的法线)指向曲线凹的一侧上取一点D,使得
,则称以D为圆心,以
为半径的圆为曲线在M处的曲率圆,因为此曲率圆与曲线弧度密切程度非常好,且再没有圆能介于此圆与曲线之间而与曲线相切,所以又称此圆为曲线在此处的密切圆.
在点
处的曲率,并在曲线
的图象上找一个点E,使曲线
在点E处的曲率与曲线
在点
处的曲率相同;
(2)若要在曲线
上支凹侧放置圆
使其能在
处与曲线
相切且半径最大,求圆
的方程;
(3)在(2)的条件下,在圆
上任取一点P,曲线
上任取关于原点对称的两点A,B,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1992f681163b2b8d1fe2df9280225f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d2174f411d9db6ab7b2aea47818cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2b6c6aec8cfad1ce0277d6db9759c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67466ba0dcffc70b783b0e1030f4d049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171102a883b22fe6ca578efc8926f5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbb734664b496f232b86d053650bb85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc58793b423b62b234768d0cb8be55e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309092c6a1d81679c24dc598af8d6567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc58793b423b62b234768d0cb8be55e4.png)
(2)若要在曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbb734664b496f232b86d053650bb85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc58793b423b62b234768d0cb8be55e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
(3)在(2)的条件下,在圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
您最近一年使用:0次
2024-05-14更新
|
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|
2卷引用:甘肃省2024届高三下学期4月月考数学试卷
名校
解题方法
8 . 单位向量
,向量
满足
,若存在两个均满足此条件的向量
,使得
,设
,
在起点为原点时,终点分别为
.则
的最大值( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b5928073c8362396362548f444be1a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d723abb0e758767ac4ecc27fbc1f5280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1640353ad14e6fdd230fca604c1490e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d723abb0e758767ac4ecc27fbc1f5280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7330b5e254388675e10975dda1ec25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b7fc06225f990e3b0440215b705c3a.png)
A.![]() | B.![]() | C.4 | D.2 |
您最近一年使用:0次
2024-04-23更新
|
591次组卷
|
3卷引用:甘肃省张掖市某校2024届高三下学期第三次模拟数学试卷
名校
解题方法
9 . 已知椭圆
的左、右焦点分别为
,过点
且斜率为
的直线与
交于
两点.若
,则
的离心率为_____ ;线段
的垂直平分线与
轴交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d398e2747bec7d0d3900a32b34510da.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/d78fd95f89dec2d373fa57f02acd739f.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/08fab3d0b2d405613743fa68d5ccac76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d398e2747bec7d0d3900a32b34510da.png)
您最近一年使用:0次
名校
解题方法
10 . 双曲线
上一点
到左、右焦点的距离之差为6,
(1)求双曲线
的方程,
(2)已知
,过点
的直线
与
交于
(异于
)两点,直线
与
交于点
,试问点
到直线
的距离是否为定值?若是,求出该定值;若不是,请说明理由,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b9b445242927a1bf30cb82a763af275.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3c9967968279271d8cf1f9444c0ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b569572c8d9bf05d78d3ab741e68bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
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2024-04-12更新
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8卷引用:甘肃省定西市2023-2024学年高三下学期教学质量统一检测数学试题