1 . 已知抛物线
的焦点为
,点
在抛物线
上.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.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/b21872d8f6a518e0a2993ccf7a795ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1584d07b1e2ddc64349f0f5940f3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2024-02-06更新
|
232次组卷
|
6卷引用:江苏省2021届高三高考数学全真模拟试题(一)
江苏省2021届高三高考数学全真模拟试题(一)上海市复旦大学附属中学2020-2021学年高二上学期期末数学试题(已下线)专题2.2 圆锥曲线【章节复习专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)上海市闵行中学2022-2023学年高二上学期期中数学试题(已下线)3.3.1 抛物线及其标准方程【第三练】“上好三节课,做好三套题“高中数学素养晋级之路北京市顺义区第一中学2024届高三下学期3月月考数学试题
2 . 若抛物线
上一点
到焦点的距离是该点到
轴距离的3倍,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bd426e7e1e65d91394da0b28d49f65.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e8ffd0f8eae86ed67c37611d26e9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6a4781b020b879519321e05c299f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bd426e7e1e65d91394da0b28d49f65.png)
您最近一年使用:0次
2023-01-29更新
|
912次组卷
|
7卷引用:上海市华东师范大学第二附属中学2021届高三下学期5月高考模拟数学试题
(已下线)上海市华东师范大学第二附属中学2021届高三下学期5月高考模拟数学试题四川省成都市第七中学2022-2023学年高三下学期入学考试数学(文)试题(已下线)模块六 平面解析几何-1江西省宜春中学2023届高三下学期第二次月考数学(文)试题广西防城港市高级中学2023届高三下学期2月月考数学(理)试题(已下线)第05讲 3.3.1抛物线及其标准方程(8类热点题型讲练)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)上海市行知中学2024届高三上学期10月月考数学试题
3 . 已知F是抛物线
的焦点,P是C上一点,O为坐标原点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1ba86ffc6e5542b62319848c14acaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9b05d3198d40b10380769b8ee1139c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
您最近一年使用:0次
2021·全国·模拟预测
名校
4 . 已知
,
是抛物线
上的动点,且满足
,则
中点
的横坐标
的最小值为___________ .
![](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/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ce485a782ae377ab4c1c3037edcfae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
2021-12-30更新
|
488次组卷
|
4卷引用:2022年全国高中名校名师原创预测卷(四)
(已下线)2022年全国高中名校名师原创预测卷(四)2022年普通高等学校招生全国统一考试模拟试题(全国乙卷A)理科数学试题(已下线)专题二十四 抛物线吉林省长春市第二实验中学2021-2022学年高三下学期5月月考数学试题
2021·全国·模拟预测
解题方法
5 . 过抛物线
的焦点
作直线
与抛物线交于
、
两点,线段
的垂直平分线交
轴于
,点
为
的平分线上任意一点,记
与
的面积分别为
、
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2997a1f93e64edb331481b5a1f7fdbeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95558cdc4ce1e6d9462d2e91c070655f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a39f04d1c3551403dbbed35deb01232.png)
您最近一年使用:0次
2021-12-29更新
|
387次组卷
|
3卷引用:2022届高三普通高等学校招生全国统一考试数学信息卷(三)
6 . 已知O为坐标原点,抛物线
上一点A到焦点F的距离为4,设点M为抛物线C的准线l上的动点,给出以下命题:
①若
为正三角形时,则抛物线C方程为
;
②若
于M,则抛物线在A点处的切线平分
;
③若
,则抛物线C方程为
;
其中所有正确的命题序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7bbab834d160cd5214c539a08be5c5.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ecbec8422e7d36b2ee029596610a48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e296c176f79b449f14ab19b527d473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2dcbf20cfa04c55a86134b0d217684.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107a1018af601ef285a87e6efd02442d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0261104a7c308433a0c0508ff20ea29a.png)
其中所有正确的命题序号是
您最近一年使用:0次
名校
7 . 已知O为坐标原点,抛物线C:
上一点A到焦点F的距离为4,设点M为抛物线C准线l上的动点,给出以下命题:
①若△MAF为正三角形时,则抛物线C方程为
;
②若
于M,则抛物线在A点处的切线平分
;
③若
,则抛物线C方程为
;
④若
的最小值为
,则抛物线C方程为
.
其中所有正确的命题序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
①若△MAF为正三角形时,则抛物线C方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e296c176f79b449f14ab19b527d473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2dcbf20cfa04c55a86134b0d217684.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107a1018af601ef285a87e6efd02442d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0261104a7c308433a0c0508ff20ea29a.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a84293c7754aade65028d6d175ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38acfaa0f912c2598cc341ec98da8a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
其中所有正确的命题序号是
您最近一年使用:0次
2021-12-25更新
|
870次组卷
|
5卷引用:四川省南充市2021-2022学年高三高考适应性考试(一诊)数学(理)试题
四川省南充市2021-2022学年高三高考适应性考试(一诊)数学(理)试题四川省成都市第二十中学校2022-2023学年高三上学期第一次模拟考试理科数学试题(已下线)重难点05 解析几何-2022年高考数学【热点·重点·难点】专练(新高考专用)四川省内江市威远中学2021-2022学年高三下学期第一次月考数学(理)试题(已下线)热点11 圆锥曲线的定义方程与性质【热点·重点·难点】专练(全国通用)
2021·全国·模拟预测
解题方法
8 . 若直线
,
都过抛物线
:
的焦点
,直线
交抛物线
于点
,
,直线
交抛物线
于点
,
,
为弦
的中点,且
到
轴的距离为
,则当
取得最大值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.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/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/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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.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/99d6f607765f207476c1ff129b007759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ce0398a9077dc619224669fbaea41c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
您最近一年使用:0次
9 . 已知抛物线的焦点为
,过点
的直线l与抛物线交于A,B两点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248f9bb8dd23ab0fa70e774678d91641.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2347bec7975dab2b8bce2fd19b1237d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a583bea9103bb453527e5a40632687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248f9bb8dd23ab0fa70e774678d91641.png)
您最近一年使用:0次
名校
解题方法
10 . 已知点
,抛物线
:
的焦点为
,射线
与抛物线
相交于点
,与其准线相交于点
.若
,则
的值等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a84757fa1fc2e9bf6134c12dce7fe0.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a477603f3f88c3b48352b6130f9ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/350e91f6e3fc1253aadcf002d72adddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
您最近一年使用:0次