名校
1 . 已知函数
,若
使得
的图象在点
处的切线与
轴平行,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d458b75c3c5d9078ea50c42f9135ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3691d7e6510dccb66ed928a0d9570e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8559f5db9b978cb2bd290dbce7268629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.2 | B.![]() | C.1 | D.![]() |
您最近一年使用:0次
名校
2 . 已知双曲线
的顶点为
,
,虚轴的一个端点为
,且
是一个直角三角形,则双曲线
的渐近线为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73314082aec86935318f5efc466b1dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知函数
,则下列结论中错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7444b2a67506a0b3bef129b6fc5a04f5.png)
A.![]() |
B.![]() |
C.![]() |
D.曲线![]() ![]() ![]() |
您最近一年使用:0次
4 . 已知双曲线
的左、右焦点分别为
,直线
与
的一条渐近线平行,若点
在
的右支上,点
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b9a6f6acf5af46a6543c80414abbe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5640ba51541dce7590c009e5e77a1ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd371fe0f40dc56b63c92d67c9ffcb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb1d666dafb5ec27128f2703e51afe5.png)
A.![]() | B.6 | C.![]() | D.8 |
您最近一年使用:0次
名校
解题方法
5 . 已知函数
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef88bf752cda4bb15e3205d4feccff89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9652e30dad4d1ea51c10b229a10252d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 已知直线
,圆
,则“
与
有公共点”是“![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5faa92475dd91f0c3c029d9d8e4d2a6.png)
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a8ba78658831f9fce13aafa1d93973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/283e9300e810cd82d12f2b4cf57e7920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5faa92475dd91f0c3c029d9d8e4d2a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f09396aeb5c3f1c5d2df27ea8d56bbf.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
7 . 已知椭圆
:
的左、右两个顶点为
,
,点
,
,
是
的四等分点,分别过这三点作斜率为
的一组平行线,交椭圆
于
,
,…,
,则直线
,
,…,
,这6条直线的斜率乘积为( )
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32efe4eff75508cb93e828c735dcb695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2799abb64fd7bfce9dfa7228aa460564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63be95225b55df87368caaf221adf29e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aba947934b05caae8b0c1fb1a522a0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64befa24b39935b92f77b2b7b278a28d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888ef8649aad7d2d207ca0af35b015cf.png)
A.![]() | B.![]() | C.8 | D.64 |
您最近一年使用:0次
名校
8 . 命题“
,
”的否定形式是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8683ad2d52601d466907490d262291.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
9 . 函数
恰好有一零点
,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312238cb2c479bfee2d7bb15ff62cdb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564caa5ff6dfaf9b488f59031e9d7525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 双曲线
的一条渐近线方程为
,则其离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4f24e7bd375303aeb662053669c62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802b5e82f3c9f9436cace374adaad608.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次