名校
1 . 已知函数
,
.
(1)
时求函数
的单调区间;
(2)当
时,求证:对任意
,恒有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899d40b293c6e4d460165858d72c19d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72eee485cec19381b84ff43f236dcfb8.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e189dbc979fad6bf8ca03ac1388cbac0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038f0764661f4ef2172911da4884232e.png)
您最近一年使用:0次
2 . 设函数
.
(1)若
在
上存在零点,求实数
的取值范围;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7386098afa7d829c64b2674658cbcf1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa0c188255dc8c9367aaf33bc86a462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffc1e605de4cc77a0897e0a2efa4bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb69a0009802275ecfc770aed9e7ce4c.png)
您最近一年使用:0次
名校
解题方法
3 . 已知圆
,椭圆
的左右焦点为
,过
且垂直于x轴的直线被椭圆和圆所截得弦长分别为1和
.
![](https://img.xkw.com/dksih/QBM/2021/2/22/2663757728129024/2665013383454720/STEM/6de2c1bc-46ff-444c-9897-f7b40f6e5064.png)
(1)求椭圆的标准方程;
(2)如图P为圆上任意一点,过P分别作椭圆两条切线切椭圆于A,B两点.
(ⅰ)若直线
的斜率为2,求直线
的斜率;
(ⅱ)作
于点Q,求证:
是定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f62686f6f9118291c444a8d5a4d0f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bfa5840675e634a9f5e1f602775e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://img.xkw.com/dksih/QBM/2021/2/22/2663757728129024/2665013383454720/STEM/6de2c1bc-46ff-444c-9897-f7b40f6e5064.png)
(1)求椭圆的标准方程;
(2)如图P为圆上任意一点,过P分别作椭圆两条切线切椭圆于A,B两点.
(ⅰ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
(ⅱ)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84733f9dc908ceb11459cc2aed580ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f72b896492d4821b2da7f933a05dff.png)
您最近一年使用:0次
2021-02-24更新
|
2686次组卷
|
7卷引用:福建省泉州第五中学2020-2021学年高二下学期入学考试数学试题
福建省泉州第五中学2020-2021学年高二下学期入学考试数学试题安徽省六校教育研究会2021届高三下学期2月第二次联考理科数学试题(已下线)专题1.11 圆锥曲线-定点、定值、定直线问题-2021年高考数学解答题挑战满分专项训练(新高考地区专用)黑龙江省哈尔滨师范大学附属中学2021届高三第四次模拟考试理科数学试题东北三省三校(哈师大附中)2021届高三四模数学(理)试题(已下线)专题2 蒙日圆 微点3蒙日圆综合训练(已下线)第五篇 向量与几何 专题1 蒙日圆与阿氏圆 微点3 蒙日圆综合训练
名校
解题方法
4 . 已知拋物线
,过点
作
的两条切线,切点分别为
.
(1)若
,求直线
的方程;
(2)若
,证明直线
过定点,并求出该定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531fc91e66179b770d8a89e2e7ac8cda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5e0b887dd6fe0d0a5204537e7e5591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3129ddd2ea97fd010b9e0b644225da8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
.
(1)讨论函数
的极值点的个数;
(2)已知函数
有两个不同的零点
,且
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a1ed77b0d02aff249c7d5ebff71a97.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cc31a54bb4c0aca0cc84c25699f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f05453013bb87fa4ecbad005a51ef21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fabdf67dafc59991359f8146c3c360a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57c53cbf56d5496ac4a7a49e82047b5.png)
您最近一年使用:0次
2021-03-19更新
|
1462次组卷
|
7卷引用:福建省莆田第一中学2020-2021学年高二下学期期中考试数学试题
福建省莆田第一中学2020-2021学年高二下学期期中考试数学试题江苏省徐州市2021届高三下学期第三次调研测试数学试题山东省泰安市2021届高三3月统一质量检测(一模)数学试题福建省泉州市永春二中、平山中学等五校2022-2023学年高二下学期期中联考数学试题(已下线)第4讲 导数与不等式(练)-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)(已下线)第4讲 导数与不等式(讲)-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)(已下线)NO.4 练悟专区——解答题突破练-2022年高考数学二轮复习讲练测(新教材·新高考地区专用)
名校
解题方法
6 . 已知函数
有两个不同极值点
.
(1)求实数a的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76ff07debb0edc01da2f6e57147a2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(1)求实数a的取值范围;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c67a34394380636fdf4b882ce28d40.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)讨论函数
的单调性;
(2)证明:当
时,
.参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4b5dd2d9b5cd1fc0d7c01ad7d51379.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c67a7e28dba059006021a2e2105f538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3897082543ddc921044fb6e0768cc0df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a9e033a59aed506b6689580d7f90fa.png)
您最近一年使用:0次
2021-01-28更新
|
1041次组卷
|
4卷引用:福建省福州市2020-2021学年高二上学期期末考试数学试题
福建省福州市2020-2021学年高二上学期期末考试数学试题福建省福州市2020-2021学年高二上学期期末质量抽测数学试题重庆市凤鸣山中学2021届高三下学期第一次月考数学试题(已下线)专题4.14—导数大题(构造函数证明不等式1)-2022届高三数学一轮复习精讲精练
名校
解题方法
8 . 已知椭圆
的离心率为
,
为E的上顶点.
(1)求E的方程;
(2)以A为直角顶点的
的另两个顶点均在E上运动,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
(1)求E的方程;
(2)以A为直角顶点的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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2021-01-28更新
|
644次组卷
|
3卷引用:福建省福州市2020-2021学年高二上学期期末考试数学试题
名校
9 . 已知椭圆
的长轴长是焦距的2倍,且过点
.
(1)求椭圆
的方程;
(2)设
为椭圆
上的动点,
为椭圆
的右焦点,
,
分别为椭圆
的左、右顶点,点
满足
.
①证明:
为定值;
②设
是直线
上的动点,直线
、
分别另交椭圆
于
、
两点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd5f27c5f8a8cda3403c73108dfd30c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.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/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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5657461ccf2408ecb8834b5b9d8e16b.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea250f537ec407a1f47c37cccb7dcf2.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.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/bd3adfb8ef95245d7d073de76ceb053a.png)
您最近一年使用:0次
2020-12-02更新
|
431次组卷
|
2卷引用:福建省厦门外国语学校2021届高三1月阶段性检测数学试题
名校
10 . 已知复数
在复平面内对应的点为
,且
满足
,点
的轨迹为曲线
.
(1)求
的方程;
(2)设
,
,若过
的直线与
交于
,
两点,且直线
与
交于点
.证明:
(i)点
在定直线上;
(ii)若直线
与
交于点
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6d334cdda2dffb482842af63581e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188c0add663e550e2f364c2bfe0c5bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(i)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(ii)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ca5c4cf0a8d6056678b30a04175d1d.png)
您最近一年使用:0次
2021-05-10更新
|
2656次组卷
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6卷引用:福建省漳州市2021届高三三模数学试题
福建省漳州市2021届高三三模数学试题(已下线)专题07 《圆锥曲线与方程》中的解答题压轴题(1)-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) (已下线)9.6 三定问题及最值(精练)-【一隅三反】2022年高考数学一轮复习(新高考地区专用)辽宁省锦州市2022届高三第一次质量检测数学试题(已下线)3.2双曲线C卷(已下线)专题22 圆锥曲线中的定点、定值、定直线问题 微点3 圆锥曲线中的定直线问题