1 . 如图椭圆
的离心率为
,且四个顶点所构成的四边形面积为
.椭圆
的左、右焦点分别为
,
,直线
与椭圆
交于
,
两点,直线
与抛物线
交于
,
两点,直线
与抛物线
交于
,
两点.
![](https://img.xkw.com/dksih/QBM/2021/9/3/2800288166854656/2801798621732864/STEM/f7757af151484de9983f0cc6e7f3ee44.png?resizew=318)
(1)求椭圆
的标准方程;
(2)当
时,求实数
的值;
(3)若
与
长度之和为80,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e87de5742cd2e5553591cb9a1621cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308851ff50b70a88d876040b68551d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a2f3e86eafc651df947af2c471d820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308851ff50b70a88d876040b68551d7e.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/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c7fc8e284e4aafd93a630d50a53930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2021/9/3/2800288166854656/2801798621732864/STEM/f7757af151484de9983f0cc6e7f3ee44.png?resizew=318)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308851ff50b70a88d876040b68551d7e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c85d02822aed80dc070e71f496310bd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
2 . 如图,已知抛物线
,过点
作斜率为
(
)的直线
交抛物线于
,
两点,其中点
在第一象限,过点
作抛物线的切线与
轴相交于点
,直线
交抛物线另一点为
,线段
交
轴于点
.记
,
的面积分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/70c2741b-30a5-4dfe-93a8-789335d2a87e.png?resizew=249)
(Ⅰ)若
,求
;
(Ⅱ)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8953ded144195804384dcb494d5e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaca265b624f276effef431d9653362b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9524e3810e06dc781285f1289e75d653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/70c2741b-30a5-4dfe-93a8-789335d2a87e.png?resizew=249)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05da40a2d7dab5d6a003906ca19d4749.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
2021-03-01更新
|
1436次组卷
|
6卷引用:专题21 抛物线综合-2020年高考数学母题题源全揭秘(浙江专版)
(已下线)专题21 抛物线综合-2020年高考数学母题题源全揭秘(浙江专版)(已下线)【新东方】高中数学20210527-003【2021】【高二下】浙江省名校新高考研究联盟(Z20联盟)2021届高三下学期第二次联考数学试题(已下线)【新东方】绍兴数学高三下【00044】(已下线)第45讲 解析几何的三角形、四边形面积问题及面积比问题-2022年新高考数学二轮专题突破精练(已下线)第43讲 解析几何中的几何问题转化为代数问题-2022年新高考数学二轮专题突破精练
3 . 过抛物线
的焦点F作两条互相垂直的直线
,
,与抛物线分别交于点A,B和点M,N,点O为坐标原点,则
与
的面积的倒数的平方和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
A.1 | B.2或![]() | C.![]() | D.2或![]() |
您最近一年使用:0次
2020-12-31更新
|
329次组卷
|
3卷引用:陕西省西安交大附中2020-2021学年高三上学期第五次诊断考试理科数学试题
4 . 已知
,
是抛物线
上两个不同的点,
的焦点为
.
(1)若直线
过焦点
,且
,求
的值;
(2)已知点
,记直线
,
的斜率分别为
,
,且
,当直线
过定点,且定点在
轴上时,点
在直线
上,满足
,求点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa1658de048bb4b39c0409004da0511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3263811a06227abf213822c14a314dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626bd07f966ea26a51dcd8ceba04ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf32f4d595c02a8c0f7cc5f8fd0c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1695f08553432ec9bfd6f1e428ea93.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b0cdd9d1427dbf6569370670a51893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2020-12-29更新
|
1096次组卷
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3卷引用:河北省2020-2021学年高二上学期12月考试数学试题
20-21高二上·江西南昌·期中
5 . 已知抛物线
的焦点为F,过点
的直线交此抛物线于
两点.
(1)若弦
中点的纵坐标为2,求弦
的长.
(2)求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdefbd84550de6d5259b2d926e021224.png)
您最近一年使用:0次
名校
解题方法
6 . 已知抛物线
:
(
)的焦点为
,准线为
,过
的直线交抛物线于
,
两点,作
,
,垂足分别为
,
,若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e296c176f79b449f14ab19b527d473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076056d278749c4cadf4b7cd08373f40.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/c5b7937d2541afc6351464650727a8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2cc124ae4cbc5841b6fb86687aba619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
A.![]() | B.4 | C.5 | D.![]() |
您最近一年使用:0次
2020-12-02更新
|
1606次组卷
|
11卷引用:广东省2021届普通高中学业质量联合测评(11月大联考)高三数学试题
广东省2021届普通高中学业质量联合测评(11月大联考)高三数学试题河北省衡水中学2021届高三上学期学业质量联合测评数学试题(已下线)练习10+圆锥曲线的综合应用-2020-2021学年【补习教材·寒假作业】高二数学(理)(北师大版)(已下线)练习10+圆锥曲线的综合应用-2020-2021学年【补习教材·寒假作业】高二数学(文)(北师大版)河北省玉田县第一中学2021届高三上学期12月段考数学试题江西省贵溪市第一中学2021-2022学年高二上学期第三次月考数学(理)试题河北省廊坊市第一中学2022-2023学年高二上学期11月月考数学试题广西壮族自治区钦州市第四中学2022-2023学年高二上学期10月月考数学试题(已下线)黄金卷01-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)2021年普通高等学校招生全国统一考试(全国2卷)冲刺卷(一)(已下线)大招28抛物线结论荟萃
名校
解题方法
7 . 已知抛物线C:
的焦点F与椭圆
的右焦点重合,点
是抛物线
的准线上任意一点,直线
,
分别与抛物线
相切于点
,
.
![](https://img.xkw.com/dksih/QBM/2020/11/18/2595647529246720/2602603806826496/STEM/9b52d639b96c4cfda286ed133aaa6b6c.png?resizew=184)
(1)求抛物线
的标准方程;
(2)设直线
,
的斜率分别为
,
,证明:
为定值;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2020/11/18/2595647529246720/2602603806826496/STEM/9b52d639b96c4cfda286ed133aaa6b6c.png?resizew=184)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05da40a2d7dab5d6a003906ca19d4749.png)
您最近一年使用:0次
2020-11-28更新
|
2025次组卷
|
7卷引用:山东省日照市五莲县2020-2021学年高二上学期期中考试数学试题
山东省日照市五莲县2020-2021学年高二上学期期中考试数学试题山东省泰安市新泰第一中学(东校)2020-2021学年高二上学期第二次质量检测数学试题安徽省六安市第一中学2020-2021学年高二下学期开学考试数学(理)试题(已下线)黄金卷01-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)(已下线)专题02 圆锥曲线弦长问题-【解题思路培养】2022年高考数学一轮复习解答题拿分秘籍(全国通用版)(已下线)2021年新高考浙江数学高考真题变式题17-22题(已下线)专题35 双切线问题的探究-1
名校
解题方法
8 . 已知抛物线C:
(
)的焦点F与
的一个焦点重合,过焦点F的直线与C交于A,B两不同点,抛物线C在A,B两点处的切线相交于点M,且M的横坐标为4,则弦长![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd225be5b696c823fbc06a3d8639758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcea43246b86730e37244c3f1425fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
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解题方法
9 . 已知点
为抛物线
上一点.
(Ⅰ)求抛物线E的方程;
(Ⅱ)若直线
与抛物线E交于A,B两点,以点A为直角顶点作
,且
的外接圆圆心T的坐标为
,求线段AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c42d88e496a17562d25195301e0ac2.png)
(Ⅰ)求抛物线E的方程;
(Ⅱ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7eff5ecd1b7c0009d2ebaed7d9fb6fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9242dd26ba42e906d512542f02807779.png)
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名校
解题方法
10 . 已知动抛物线
(其中
)与动直线
交于
两点且与动直线
交于
两点,
构成一个梯形.
为这个梯形的面积,
为其一腰长,则
的最小值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb9ad466c2dcbbe064bad2828ea0ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5dfd35fb8a15da4de58313d4148eb08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4beb50bce61c0f746f870d090aedf552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c517b5fcd79e6a89c955e3e1b33cddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f7e2640377963a6b7d8c873d745002.png)
您最近一年使用:0次