1 . 已知抛物线
的顶点在原点,焦点
在
轴上,点
在抛物线
上,且
.
(1)求抛物线
的方程;
(2)已知圆
交抛物线
与
,
两点,过劣弧
上一点
作圆
的切线
交抛物线
与
,
两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/097f0bb97579029799b799de78b740fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09e8a127fffff3b4df40d85780ace8d.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f62686f6f9118291c444a8d5a4d0f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/62d372c99450c4fbbbb0f397e5ecb82c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3f8b589e13b82d6284f266b6f35f5c.png)
您最近一年使用:0次
20-21高一·浙江·期末
解题方法
2 . 已知抛物线
上一点
到其焦点的距离为10.
(Ⅰ)求抛物线C的方程;
(Ⅱ)设过焦点F的直线l与抛物线C交于A,B两点,且抛物线在A,B两点处的切线分别交x轴于P,Q两点,
①设
,求点P的横坐标;
②求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b7b597a02e45d473be799509933a86.png)
(Ⅰ)求抛物线C的方程;
(Ⅱ)设过焦点F的直线l与抛物线C交于A,B两点,且抛物线在A,B两点处的切线分别交x轴于P,Q两点,
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082dfa67d1a70508e211be2cc553ea76.png)
您最近一年使用:0次
3 . 已知抛物线
,过抛物线上第一象限的点A作抛物线的切线,与x轴交于点M.过M作
的垂线,交抛物线于B,C两点,交
于点D.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d0b74f87-bd25-480c-a268-26f7cde3b744.png?resizew=197)
(1)求证:直线
过定点;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1572efb0374398d881d374bf4dec2881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d0b74f87-bd25-480c-a268-26f7cde3b744.png?resizew=197)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1dc424562cc13e83e1fffc4f8587234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f467bcf0c2218b21c8479c04da0f204b.png)
您最近一年使用:0次
名校
解题方法
4 . 已知斜率为
的直线
与抛物线
交于
轴上方不同的两点
、
,记直线
、
的斜率分别为
、
,则
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.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/b69e3f7ddd51215d00661c09cd900d60.png)
您最近一年使用:0次
2022-11-19更新
|
473次组卷
|
4卷引用:2016届浙江省温州市高三一模理科数学试卷
2016届浙江省温州市高三一模理科数学试卷上海市杨浦区复旦大学附属中学2022-2023学年高二上学期期中数学试题(已下线)重难专攻(八)圆锥曲线中的最值(范围)问题 讲(已下线)考点18 解析几何中的范围、最值问题 2024届高考数学考点总动员【练】
解题方法
5 . 设抛物线
,恒过定点
的直线
与抛物线交于A,B,且A、B到x轴距离之积为
.
(1)求抛物线方程;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939f184c8be7cae03d50759544b515c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad491e5b5e14c49ef8b7004ebcfcef9.png)
(1)求抛物线方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49a4c11d41372175ba3541a44c3376b0.png)
您最近一年使用:0次
2021-02-05更新
|
395次组卷
|
4卷引用:浙江省丽水高中发展共同体2020-2021学年高三上学期期末联考数学试题
浙江省丽水高中发展共同体2020-2021学年高三上学期期末联考数学试题(已下线)专题1.10 圆锥曲线-抛物线-2021年高考数学解答题挑战满分专项训练(新高考地区专用)重庆市缙云联盟2021-2022学年高二上学期10月质量检测数学试题广西桂林市田家炳中学2023届高三上学期10月月考数学试题
6 . 如图,过抛物线
的焦点F作直线l交C于
,
两点,其中
,设直线
分别与抛物线相切于点A,B,
交于点P.
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650178151555072/2651556791738368/STEM/cb8e9d57-fdac-4ebc-82a8-106b04a0f6f1.png)
(1)若
,求切线
的方程;
(2)过F作y轴的垂线交
于点M,若有且仅有一条直线l使得
,求t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](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/8f22b8dd77db6b39df6dfb8a8b7176ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650178151555072/2651556791738368/STEM/cb8e9d57-fdac-4ebc-82a8-106b04a0f6f1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4223bd6ee8f82d59d244371fbcddc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)过F作y轴的垂线交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94bb461c45e9c18500fbc13111aef9d.png)
您最近一年使用:0次
7 . 已知:抛物线
,曲线
,过
上一点
作
的两条切线,切点分别为
.
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650310066290688/2651388767019008/STEM/21ba9818-eb12-4fc6-a408-3c31f2bc7593.png)
(1)若
,求两条切线的方程;
(2)求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca20463f303eb96b9b0a398d523d42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1081865e1f652838d382f77c8722851a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650310066290688/2651388767019008/STEM/21ba9818-eb12-4fc6-a408-3c31f2bc7593.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
您最近一年使用:0次
解题方法
8 . 已知抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
的焦点为
,且点
是抛物线
上的动点,过
作圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347761783913374a6db9f9308c475c7c.png)
的两条切线,分别交抛物线
于
,
两点.
![](https://img.xkw.com/dksih/QBM/2021/2/2/2649586349883392/2650821990146048/STEM/2e0c407c-1448-4906-88bb-1c2e30e8c9b4.png)
(Ⅰ)求抛物线C的方程;
(Ⅱ)当直线
垂直于直线
时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d025e551c993dbdd2357a65038f067.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/347761783913374a6db9f9308c475c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55200e840ea42d96f10038dea7cee5b0.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/2021/2/2/2649586349883392/2650821990146048/STEM/2e0c407c-1448-4906-88bb-1c2e30e8c9b4.png)
(Ⅰ)求抛物线C的方程;
(Ⅱ)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 已知抛物线
的焦点到准线的距离为2,直线
交抛物线于
,
两点.
(1)求抛物线
的标准方程;
(2)过点
,
分别作抛物线
的切线
,
,点
为直线
,
的交点.
(i)求证:点
在一条定直线上;
(ii)求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf92a1ba410263d4f68b7e0432b19aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a8d6991873e79b298984a95b8954b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(i)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
您最近一年使用:0次
解题方法
10 . 已知抛物线C的方程为
,其焦点为F,
为抛物线C上的一点,且M到焦点F的距离为
.
(1)求抛物线C的方程;
(2)若斜率为
的直线l与抛物线C相交于两个不同的点P,Q,线段PQ的垂直平分线过定点
,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b44f2573d4a0537783d254d965c9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
(1)求抛物线C的方程;
(2)若斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
您最近一年使用:0次