与曲线
和
都相切的直线
与直线
垂直,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/834d2a6f1ed9b300a25ec8720ee75208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89caabc0fc7d9e443fd3521b3aa631e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9effb251b3f603e1fe58f171780f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.-8 | B.-3 | C.4 | D.6 |
更新时间:2021-11-21 22:11:07
|
【知识点】 两条切线平行、垂直、重合(公切线)问题
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】已知两曲线
,
,
相交于点
,若两曲线在点
处的切线互相垂直,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/440b2e5cd4b3e07347c6135b36c699cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca95b82bd9b7b6218632b5db0f8c9bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d49ec515fb1fdc93ca4dda443326ad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知方程
的两实根为
,
,若函数
在
与
处的切线相互垂直,满足条件的
的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5929acf4c051dea115bd65418718ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5989a56d9daf2c46a097da443473dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971905ea129aec0ca7c325f60260c7e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd86badb20015aa65328fda1e43a117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次