名校
1 . 已知拋物线
和
,其中
.
与
在第一象限内的交点为
.
与
在点
处的切线分别为
和
,定义
和
的夹角为曲线
的夹角.
(1)若
的夹角为
,
,求
的值;
(2)若直线
既是
也是
的切线,切点分别为
,当
为直角三角形时,求出相应
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39eebc6a2c5bab554e6fa43c15d60728.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1138c04fc3a0e1c217db0d432e4aff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.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)
![](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/21e9feabc99f62ee569b460e61526e2e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950ebd2fdaf9e6f461c3ac713f3fea52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ca00309261a540934d9b3ed9ba05b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c28abb154f41e1ca9816c9c9c2433ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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解题方法
2 . 已知
是椭圆
上一动点,
,
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02af485e17e7628fd5a3ace6e0a32ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a279c8912ab6ebbbdc1bebebd386282.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-06-12更新
|
1365次组卷
|
5卷引用:大招15直线夹角的计算方法
(已下线)大招15直线夹角的计算方法(已下线)模块三 专题4 圆锥曲线中的最值和范围问题(高二人教A)四川省成都市第七中学高中2020届高三高中毕业班三诊模拟数学(理科)试题四川省成都市第七中学2020届高三高中毕业班三诊模拟数学(文科)试题(已下线)第03章 圆锥曲线的方程(B卷提高卷)-2020-2021学年高二数学选择性必修第一册同步单元AB卷(新教材人教A版)
名校
3 . 已知双曲线
:
,过其右焦点
作渐近线的垂线,垂足为
,交
轴于点
,交另一条渐近线于点
,并且点
位于点
,
之间.已知
为原点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ea8192a37f81472d0992f458b4ec21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9303895b572cf92e62060c2820adbd11.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-01更新
|
2323次组卷
|
8卷引用:大招15直线夹角的计算方法
(已下线)大招15直线夹角的计算方法(已下线)专题05 解析几何(第一篇)-备战2020高考数学黄金30题系列之压轴题(新课标版)2020届河北省衡水市武邑中学高三上学期期末数学(理)试题2020届湖南省长沙市高三上学期期末数学(理)试题2020届湖南师大附中高三下学期统一模拟考试数学(理)试题苏教版(2019) 选修第一册 一蹴而就 第3章 习题课一广东省华南师范大学附属中学2022届高三上学期1月模拟数学试题(已下线)2.2.3 两条直线的位置关系(分层练习)-2023-2024学年高二数学同步精品课堂(人教B版2019选择性必修第一册)