已知直线
是曲线
与曲线
的公切线,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83875fb088b151f99eb6e58eec95ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a320199b3a6ed147317ab5a914b213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.3 | C.![]() | D.2 |
2023·陕西渭南·一模 查看更多[3]
陕西省渭南市2023届高三下学期教学质量检测(Ⅰ)文科数学试题(已下线)专题3.1 导数的概念及其几何意义与运算【八大题型】湖北省黄冈市浠水县第一中学2023-2024学年高二下学期期末质量检测数学试题
更新时间:2023-02-06 20:24:55
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【知识点】 两条切线平行、垂直、重合(公切线)问题
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【推荐1】已知函数
,
,若直线
与两函数的图象均相切,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a77ee13de68d975b20386d2a7ba109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41131a76282b4fe09d65c5a756b59d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150e7c66b43138084f4ee7ee95acc65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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【推荐2】若直线y=kx+b(k
)是曲线y=lnx+2-e的切线,也是y=
的切线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c01aa1206ff7e10727440f74c6c3fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d1cc28a9f4485f00a664bd6456561b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c06558a5a8a338c5d5a0a1dc170b50.png)
A.-1 | B.-2 | C.-e | D.-![]() |
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