解题方法
1 . 已知抛物线
与
有且仅有一个公共点.
(1)求
的最大值;
(2)当
最大时,过点
的直线
交
于点
,过
引
的切线,两切线交于点
,若
的面积为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc6414461d8d228dc89f3b348043d65.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/01c74a907dda6bb7d9d56d009d9df253.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/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc603317eb90974c75efec9f02b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-04-16更新
|
125次组卷
|
2卷引用:河南省青桐鸣联考2023-2024学年高二下学期3月月考数学试题
名校
解题方法
2 . 已知抛物线
:
(
)的焦点为
,准线交
轴于点
,点
,若
的面积为1,过点
作拋物线
的两条切线切点分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/7/5a111d71-449c-439f-bd54-10e7d9dbba77.png?resizew=191)
(1)求
的值及直线
的方程;
(2)点
是抛物线弧
上一动点,点
处的切线与
,
分别交于点
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5958bc811df37f446998bca6053715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a019625b21ba728a67a3f6437709ace4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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://img.xkw.com/dksih/QBM/editorImg/2024/2/7/5a111d71-449c-439f-bd54-10e7d9dbba77.png?resizew=191)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a8588dc60a543ad70d6bc0d263dbd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef1f7b9adab87736321e30949a4d668.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/4d85b9d03ebf4a135fb20d8d8ccd7905.png)
您最近一年使用:0次
2024-01-19更新
|
241次组卷
|
2卷引用:河北省沧州市泊头市第一中学等校2024届高三上学期模拟训练(九)(2月联考)数学试题
3 . 已知直线
相交于点
,且分别与抛物线
相切于
两点,
.
(1)求抛物线
的方程;
(2)过抛物线
的焦点
的直线
分别与抛物线
相交于点
,直线
的斜率分别为
,且
,若四边形
的面积为2,求直线
夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a4a1fbee16a9d2623a28289013e077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650c6c818df102a83ce5159e3208d01a.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过抛物线
![](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/e130d1e2bbccfe591f6f166950253c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376c5c180b743c655f2af84b11ac9a4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e130d1e2bbccfe591f6f166950253c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b664fd9de4e5be0d1f6582b618ea796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b72308420e70a3f5ac67c64ae6fed2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99393efa04579f3db5cf4f7e319f0440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e130d1e2bbccfe591f6f166950253c32.png)
您最近一年使用:0次
2023-12-18更新
|
422次组卷
|
3卷引用:河南省湘豫名校2024届高三上学期12月联考数学试题
4 . 已知曲线C:y=x2-2x+3,直线l:x-y-4=0,在曲线C上求一点P,使点P到直线l的距离最短,并求出最短距离.
您最近一年使用:0次
5 . 已知抛物线
,过点
向抛物线引切线,斜率为1,切点为P.
(1)求抛物线的标准方程;
(2)已知H,T是抛物线上的两点,
,
的重心G在x轴上,PG交HT于点M,求直线HT的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/363b9216-d963-46ee-9770-efa470a38d71.png?resizew=156)
(1)求抛物线的标准方程;
(2)已知H,T是抛物线上的两点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4772136db54358716dd013f0399bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335ccf6b57b8457833387a9341861f4a.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F,圆
,过C上一点
作C的切线,该切线经过点
.
(1)求C的方程;
(2)若与C相切的直线l,与E相交于P,Q两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc60c905f3bfaeb208ef74d41bc8720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e97a3b321e8f5a5cc526b2b8daa702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a98a3d7781937b306ac44a0161afed.png)
(1)求C的方程;
(2)若与C相切的直线l,与E相交于P,Q两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a9bf6bda9363dbef5f6ff4bf6a5edf.png)
您最近一年使用:0次
2023-04-21更新
|
317次组卷
|
3卷引用:陕西省宝鸡中学2023届高三月考(七)文科数学试题
7 . 已知抛物线
与直线
相切.
![](https://img.xkw.com/dksih/QBM/2023/3/25/3202059723808768/3203110176243712/STEM/b2f1256ef5e64760af5f750d27d4b8eb.png?resizew=163)
(1)求抛物线
的方程;
(2)设
为抛物线
的准线上一点,过
作抛物线
的两条切线,切点分别为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b527ec9f92467b8f24554a2a67ee987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://img.xkw.com/dksih/QBM/2023/3/25/3202059723808768/3203110176243712/STEM/b2f1256ef5e64760af5f750d27d4b8eb.png?resizew=163)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
您最近一年使用:0次
名校
解题方法
8 . 已知直线
过抛物线
的焦点.
(1)求抛物线C的方程;
(2)动点A在抛物线C的准线上,过点A作抛物线C的两条切线分别交x轴于M,N两点,当
的面积是
时,求点A的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0accaaa66de4dfd9ed8257fa942c2cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf92a1ba410263d4f68b7e0432b19aa.png)
(1)求抛物线C的方程;
(2)动点A在抛物线C的准线上,过点A作抛物线C的两条切线分别交x轴于M,N两点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
您最近一年使用:0次
2023-01-15更新
|
650次组卷
|
6卷引用:云南省昭通市永善县知临中学2023届高三下学期3月月考数学试题
云南省昭通市永善县知临中学2023届高三下学期3月月考数学试题2023年普通高等学校招生全国统一考试·新高考仿真模拟卷数学(六)(已下线)模拟检测卷02(理科)河南省新乡市第一中学2023届高三三轮冲刺第十测理科数学试题新疆皮山县高级中学2022-2023学年高二下学期期末考试数学试题(已下线)考点15 直线与圆锥曲线相切问题 2024届高考数学考点总动员
解题方法
9 . 已知抛物线
,过动点
作抛物线的两条切线,切点为
,直线
交
轴于点
,且当
时,
.
(1)求抛物线
的标准方程;
(2)证明:点
为定点,并求出其坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51855e923c8855865cd5847a4dba573c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.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/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62520248e5138027e2f2fdb083f239dc.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
名校
10 . 已知点
在抛物线
上,过动点
作抛物线的两条切线,切点分别为
、
,且直线
与直线
的斜率之积为
.
(1)证明:直线
过定点;
(2)过
、
分别作抛物线准线的垂线,垂足分别为
、
,问:是否存在一点
使得
、
、
、
四点共圆?若存在,求所有满足条件的
点;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31fd623eb58b8c0c134b99cb7bd83ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402365aeb523fd88a62ae002f8ba2bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)过
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2022-12-09更新
|
1249次组卷
|
5卷引用:湖北省十一校2023届高三上学期12月第一次联考数学试题
湖北省十一校2023届高三上学期12月第一次联考数学试题山西省运城市景胜中学2023届高三上学期12月月考数学试题(已下线)专题13 圆锥曲线压轴解答题常考套路归类(精讲精练)-2重庆市第一中学2023-2024学年高二上学期期中数学试题(已下线)专题03 圆锥曲线题型全归纳(九大考点)-【寒假自学课】2024年高二数学寒假提升学与练(人教A版2019)