名校
1 . 已知抛物线C;
过点
.
求抛物线C的方程;
过点
的直线与抛物线C交于M,N两个不同的点
均与点A不重合
,设直线AM,AN的斜率分别为
,
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642bade9e30b7a60c2b3b7d48d87d4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/222ed48baf754fd0f7b8191e5becb98f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/dc205698-c912-4336-a736-b0fe2c628563.png?resizew=161)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10275d27800131506913cd74c34eb66f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f375dc5addedc5f9fbb72d566939c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731f980ccb6f902d460d0ea2920bfe2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02248bfd4daed0e93455fc898b2666b2.png)
您最近一年使用:0次
2018-11-16更新
|
9821次组卷
|
26卷引用:【校级联考】陕西省四校联考2019届高三高考模拟文数试题
【校级联考】陕西省四校联考2019届高三高考模拟文数试题【全国校级联考】陕西省四校联考2019届高三高考模拟理数试题【校级联考】陕西省四校2019届高三(上)12月模拟联考数学(理科)试题【校级联考】陕西省四校联考2019届高三12月模拟数学试卷(文科)试题【全国百强校】山东省枣庄第八中学2019届高三12月月考数学(文)试题【全国百强校】江西省新余市第一中学2018-2019学年高一上学期第二次(12月)段考数学试题【市级联考】浙江省“温州十校联合体”2018-2019学年高二上学期期末考试数学试题河北省张家口市第一中学(实验班)2019-2020学年高二上学期12月月考数学试题山东省菏泽市菏泽第一中学八一路校区2019-2020学年高二上学期12月月考数学试题四川省成都市蓉城名校联盟2019-2020学年高二上学期期末联考共性化练习数学(文)试题四川省成都市蓉城名校联盟2019-2020学年高二上学期期末联考共性化练习数学(理)试题青海省西宁市第十四中学2019-2020学年高二上学期期中数学(理)试题浙江省2017年4月普通高中学业水平考试数学试题吉林省长春市绿园区长春兴华高中2019-2020学年高二上学期期末数学(文)试题江西省五市八校2019-2020学年高三第二次联考文科数学试题(已下线)3.3 抛物线(精练)-2020-2021学年一隅三反系列之高二数学新教材选择性必修第一册(人教A版)(已下线)专题12 解析几何中的定值、定点和定线问题 第一篇 热点、难点突破篇(练)-2021年高考数学二轮复习讲练测(浙江专用)云南省昆明市外国语学校2020-2021学年高二4月月考数学(理)试题(已下线)第07练 直线与圆锥曲线综合二:定值定点-2022年【寒假分层作业】高二数学(苏教版2019选择性必修第一册)江苏省连云港市2022-2023学年高二上学期期末调研数学试题(10)吉林省四平市第一高级中学2019-2020学年高二上学期期末考试数学(文)试题安徽省合肥市肥东县综合高中2022-2023学年高二上学期期末数学试题云南省沧源佤族自治县民族中学2021~2022学年高二上学期期末考试数学试题河南省焦作市沁阳市第一中学2022-2023学年高二上学期期末数学试题四川省广安市华蓥中学2023-2024学年高二下学期开学考试数学试题山东省青岛第十五中学2023-2024学年高二上学期阶段性自我检测数学试题
名校
2 . 已知抛物线
的焦点为F,过F的直线l与C相交于A,B两点,
,
是C的两条切线,A,B是切点.当
轴时,
.
(1)求抛物线C的方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.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/13ecbb94ac8dfe5fbc3bffad8c9da301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f371c0b1d573c06516ab1904d95ee49f.png)
(1)求抛物线C的方程;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4efe5fedcd0679981be05353d6f5a90b.png)
您最近一年使用:0次
2022-08-14更新
|
1342次组卷
|
7卷引用:陕西省西安中学2022届高三下学期八模理科数学试题
3 . 设抛物线
的焦点为
,动直线
与抛物线
交于
,
两点,且当
时,
.
(1)求抛物线
的方程;
(2)连接
,
并延长分别交抛物线
于两点
,
,设直线
的斜率为
,直线
的斜率为
,求证:
是定值,并求出该值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f13a4dfa82ef9ca147570fd19fb94fc.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://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c528a6734bc40dfdc2c5f18a15ba6c59.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
您最近一年使用:0次
2023-03-09更新
|
611次组卷
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4卷引用:陕西省咸阳中学2022-2023学年高三下学期第六次质量检测文科数学试题
陕西省咸阳中学2022-2023学年高三下学期第六次质量检测文科数学试题江西省万安中学2023届高三一模数学试题(文科)江西省万安中学2023年高三一模数学试题(理科)(已下线)专题08 圆锥曲线 第二讲 圆锥曲线中的定点、定直线与定值问题(解密讲义)
名校
解题方法
4 . 已知点
是抛物线
:
的焦点,纵坐标为2的点
在
上,以
为圆心、
为半径的圆交
轴于
,
,
.
(1)求抛物线
的方程;
(2)过
作直线
与抛物线
交于
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360496a4f5cc8a5faca5e089ae4f9531.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70478e43bb65a8c60d1ef3bb2cbb4eac.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73942dc2daa4c75057542178bf5c0e70.png)
您最近一年使用:0次
名校
解题方法
5 . 已知抛物线
的焦点为
,点
在抛物线
上,且
.
(1)求抛物线
的方程;
(2)过点
且斜率存在的直线
交抛物线
于不同的两点
,设
为坐标原点,直线
的斜率分别为
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97afdeaa1d4433cffe5005446fcbbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1d1b66bf9c3b75dc49f2bdb7bbc40e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b835beb731066834a5393452f7cb4603.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25e326fdf9e5456f48e8a99a069f379.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
您最近一年使用:0次
2022-12-23更新
|
1008次组卷
|
16卷引用:陕西省咸阳市武功县2022届高三下学期第二次质量检测理科数学试题
陕西省咸阳市武功县2022届高三下学期第二次质量检测理科数学试题陕西省西安市阎良区2020-2021学年高二下学期期末文科数学试题陕西省西安市阎良区2020-2021学年高二下学期期末理科数学试题陕西省榆林市2021-2022学年高二上学期期末理科数学试题陕西省渭南市韩城市2021-2022学年高二上学期期末理科数学试题陕西省榆林市神木中学2020-2021学年高二下学期第四次测试理科数学试题陕西省榆林市神木中学2020-2021学年高二下学期第四次测试文科数学试题(已下线)第3.6讲 抛物线的简单几何性质-2021-2022学年高二数学链接教材精准变式练(人教A版2019选择性必修第一册)吉林省通化市梅河口市第五中学2021-2022学年高二上学期期中数学试题宁夏石嘴山市平罗中学2021-2022学年高二上学期期中考试数学(理)试题(已下线)专题9-2 圆锥曲线(解答题)-2重庆市荣昌中学校2022-2023学年高二上学期期末数学试题(已下线)专题3-6 抛物线综合大题归类(讲+练)-【巅峰课堂】2023-2024学年高二数学热点题型归纳与培优练(人教A版2019选择性必修第一册)四川省达州市达川区铭仁园学校2023-2024学年高二上学期第四次月考数学试题(已下线)专题05 抛物线8种常见考法归类(2)四川省绵阳市江油中学2023-2024学年高二上学期期末数学模拟试题3
6 . 已知
为抛物线
:
的焦点,过
作两条互相垂直的直线
,
,直线
与
交于
、
两点,直线
与
交于
、
两点,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/2e9b0f5f44abbc6544a2f672b025b013.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://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3abb5692e7ba66f3f821cc86e78b9dd.png)
您最近一年使用:0次
2021-05-04更新
|
1621次组卷
|
4卷引用:陕西省汉中市2021届高三下学期第二次检测文科数学试题
陕西省汉中市2021届高三下学期第二次检测文科数学试题陕西省汉中市2021届高三下学期第二次检测理科数学试题(已下线)专题10 焦半径公式的应用 微点2 焦半径公式的应用综合训练黑龙江省佳木斯市富锦市第一中学2022-2023学年高二上学期期末考试数学试题
7 . 已知点
在抛物线
上,且
到
的焦点
的距离与到
轴的距离之差为
.
(1)求
的方程;
(2)当
时,
是
上不同于点
的两个动点,且直线
的斜率之积为
为垂足.证明:存在定点
,使得
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b87f1752796fedb1cb11a46585cb74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2778bfe38cb3747e3a88ffc4bfcd761e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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/8d42cb68c5c877a455ba7ac0a6b6a651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdbe8ff6df5cb451f577448479cf40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ea907b820c999daced6c12a4f876fc.png)
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2022-12-26更新
|
986次组卷
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6卷引用:陕西省宝鸡市2023届高三上学期一模理科数学试题
陕西省宝鸡市2023届高三上学期一模理科数学试题陕西省宝鸡市2023届高三上学期一模文科数学试题(已下线)专题14 抛物线专项练习河北省唐山市丰南区第一中学2023届高三上学期期末数学试题(已下线)专题9-2 圆锥曲线(解答题)-2甘肃省张掖市2022-2023学年高三下学期第一次全市联考数学(文)试题
8 . 已知抛物线
的准线与椭圆
相交所得线段长为
.
(1)求抛物线
的方程;
(2)设圆
过
,且圆心
在抛物线
上,
是圆
在
轴上截得的弦.当
在抛物线
上运动时,弦
的长是否有定值?说明理由;
(3)过
作互相垂直的两条直线交抛物线
于
、
、
、
,求四边形
的面积最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/d40b319212a7e7528b053e1c7097e966.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4518e443ba2fe8d795913eb79fa3a588.png)
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2024-01-03更新
|
418次组卷
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2卷引用:陕西省宝鸡实验高级中学2024届高三上学期12月联考文科数学试题
9 . 如图,已知抛物线
上的点R的横坐标为1,焦点为F,且
,过点
作抛物线C的两条切线,切点分别为A、B,D为线段PA上的动点,过D作抛物线的切线,切点为E(异于点A,B),且直线DE交线段PB于点H.
![](https://img.xkw.com/dksih/QBM/2022/4/18/2960969175646208/2961631696683008/STEM/83f438a1791641239e51c26df70965e2.png?resizew=231)
(1)求抛物线C的方程;
(2)求证:
为定值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038f8c43f8fa99611a40c95cf8899a28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a297f399ee48fe07cd6aacc935a1c46.png)
![](https://img.xkw.com/dksih/QBM/2022/4/18/2960969175646208/2961631696683008/STEM/83f438a1791641239e51c26df70965e2.png?resizew=231)
(1)求抛物线C的方程;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1489a936094d62ca200619405600fc9a.png)
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2022-04-19更新
|
935次组卷
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5卷引用:陕西省铜川市耀州中学2022届高三下学期热身冲刺考文科数学试题
陕西省铜川市耀州中学2022届高三下学期热身冲刺考文科数学试题安徽省六安市舒城中学2022届高三下学期一模文科数学试题(已下线)回归教材重难点04 圆锥曲线-【查漏补缺】2022年高考数学(文)三轮冲刺过关(已下线)第10讲 高考难点突破二:圆锥曲线的综合问题(定值问题) (精讲)河南省鹤壁市浚县第一中学2022-2023学年高三上学期11月考试文科数学试题
10 . 已知
为抛物线
上的一点,
为
的焦点,
为坐标原点.
(1)求
的面积;
(2)若
为
上的两个动点,直线
与
的斜率之积恒等于
,作
,
为垂足,证明:存在定点
,使得
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706e0350fd1c36a4e3c66868a8218a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d953266f08eb217f1b174c1729e0ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.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/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f479d987bc7abd828c64f9dc745836ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40d4cc8903167433159d13fb91e59e2.png)
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