名校
1 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63131ff320ef2d6aa097b4eebfe38714.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7e4dcebd24c843379926de9c0b780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feaa7f0ea77bf1eb406a4f0443421a02.png)
您最近一年使用:0次
2021-09-29更新
|
560次组卷
|
9卷引用:新疆伊犁州霍尔果斯市苏港中学2023届高三上学期11月月考文科数学试题
新疆伊犁州霍尔果斯市苏港中学2023届高三上学期11月月考文科数学试题九师联盟2022届高三上学期9月质量检测理科数学试题2022届9月高三理科数学质量检测联考试题吉林省双辽一中长岭三中等重点高中2021-2022学年高三上学期10月联考数学(理)试题河南省信阳市第二高级中学2021-2022学年高三上学期9月质量检测理科数学试题安徽省淮南第一中学2021-2022学年高三上学期第三次月考理科数学试题宁夏银川市第一中学2022届高三上学期第三次月考数学(文)试题贵州省黔西南州兴义市顶效开发区顶兴学校2023-2024学年高三上学期第二次月考数学试题甘肃省金昌市永昌县第一高级中学2023-2024学年高三上学期期中数学试题
解题方法
2 . 已知抛物线
.焦点为F,过
的直线l与抛物线C交于A、B两点,AB中点为M.
![](https://img.xkw.com/dksih/QBM/2022/1/25/2902134728515584/2912131593986048/STEM/9f50690e-3426-4927-8900-7656cdfbaf3a.png?resizew=217)
(1)若
,求直线l的方程;
(2)过A、B分别作抛物线C的切线,交点记为H.
(i)求点H的轨迹方程;
(ii)直线FH与直线l交于点Q,以MF为直径的圆与直线l的另一个交点为N,判断
是否为定值.若是,求出定值并给予证明,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6951479694aec937a712901634a5a4b.png)
![](https://img.xkw.com/dksih/QBM/2022/1/25/2902134728515584/2912131593986048/STEM/9f50690e-3426-4927-8900-7656cdfbaf3a.png?resizew=217)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6b6778b310cadab50919beb71303a8.png)
(2)过A、B分别作抛物线C的切线,交点记为H.
(i)求点H的轨迹方程;
(ii)直线FH与直线l交于点Q,以MF为直径的圆与直线l的另一个交点为N,判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21365a2bb15d4db42eefefe0572b3da5.png)
您最近一年使用:0次
3 . 已知直线
与抛物线
交于
两点,
为线段
的中点,点
在抛物线
上,直线
与
轴平行.
(1)证明:抛物线在点
处的切线与直线
平行;
(2)若
,求抛物线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33400b08941f4f9c0ed12b0e0cdff822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)证明:抛物线在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f2403c924afb70b7639f7b6fcfd7ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
的离心率为
,且过点
.
(1)求椭圆
的标准方程;
(2)过点
作两条直线分别交椭圆于点
,
满足直线
,
的斜率之和为
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1e95fb519f59c46f40e4ab44660073.png)
(1)求椭圆
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
名校
5 . 已知
,函数
,其中
…为自然对数的底数.
(1)证明:函数
在
上有唯一零点;
(2)记
为函数
在
上的零点,证明:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3adb9acead48e36b705874dc96979f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597de8046b5baecf54be4b0516de67ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405dfcca25b76af059fb4c308983eae.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89e13ea43300cc01379c96614d8e9cc.png)
您最近一年使用:0次
2021-10-12更新
|
558次组卷
|
3卷引用:湖北省武汉市部分重点中学2021-2022学年高二下学期期末联考数学试题
6 . 已知动点
在椭圆
:
之外,作直线
:
.
(1)证明:直线
与椭圆
有2个不同的公共点:
(2)设(1)问中两个公共点分别为A和
,若点
在椭圆
上,且满足
,求点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6900a40dabd963c43735c21e16cc8ef8.png)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设(1)问中两个公共点分别为A和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1475fd695f21b7869d4045db761967e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2022-04-20更新
|
462次组卷
|
2卷引用:广西四市2022届高三4月教学质量检测数学(理)试题
7 . 1.已知函数
,
.
(1)讨论函数
的单调性;
(2)当
时,求证:函数
在区间
上有且仅有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799e0db4b64f85b168329f91554e1e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
您最近一年使用:0次
8 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e74077408e8e70f7d7a772a1508b7c.png)
(1)函数
图像在
处的切线与函数
相切,求实数a的值;
(2)函数
与函数
图像有两个不同交点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
(i)求a的取值范围;
(ii)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e74077408e8e70f7d7a772a1508b7c.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74292e639cd3c82b131bd1c015c864b0.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74292e639cd3c82b131bd1c015c864b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
(i)求a的取值范围;
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552cd99ee7b07d61814e9b2f8a40c36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085620ed81b83938dba5872e273ab154.png)
您最近一年使用:0次
2022-04-19更新
|
590次组卷
|
2卷引用:浙江省衢温“5+1”联盟2021-2022学年高二下学期期中联考数学试题
2022·江苏南通·模拟预测
名校
9 . 已知函数
.
(1)讨论
的单调性;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7609a219cc3fe31580045aa0c751b94.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1b622142d3947dc6d9cfdbd7eb6daa.png)
您最近一年使用:0次
2022-04-19更新
|
902次组卷
|
4卷引用:江苏省南通市如皋市2022届高三下学期适应性考试(二)数学试题
(已下线)江苏省南通市如皋市2022届高三下学期适应性考试(二)数学试题江西省抚州市七校2021-2022学年高二下学期期末考试科数学(文)试题江苏省南京市第一中学2022-2023学年高三上学期8月质量检测数学试题江西省瑞金市第二中学2023届高三上学期开学考数学(理)试题
名校
解题方法
10 . 已知椭圆
过点
,且离心率为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/1906bdea-fb00-4310-862e-edc6e5be9c03.png?resizew=261)
(1)求椭圆
的方程;
(2)过
作斜率分别为
的两条直线,分别交椭圆于点
,且
,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4614a53ea9e2902f823013e20e3b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/1906bdea-fb00-4310-862e-edc6e5be9c03.png?resizew=261)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ec084f0e202fc7e4c7a90fcae03501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ef2e7c835443fcdc4c757e35d9e160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec7bcf5820dfe70290259c2d7ac1ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2021-10-20更新
|
2449次组卷
|
8卷引用:湖南省长沙市宁乡市2021-2022学年高二上学期期末数学试题
湖南省长沙市宁乡市2021-2022学年高二上学期期末数学试题(已下线)2022年全国高考乙卷数学(文)试题变式题13-16题(已下线)2022年全国高考乙卷数学(文)试题变式题21-23题黑龙江省大庆中学20201-2022学年高三上学期第一次月考数学(文)试题重庆市涪陵实验中学校2022届高三上学期期中数学试题湖南省常德市淮阳中学2021-2022学年高二上学期期中数学试题江西省宜春市宜丰县宜丰中学创新部2022-2023学年高二下学期第一次月考数学试题(已下线)第五篇 向量与几何 专题4 极点与极线 微点3 极点与极线问题常见模型总结(一)