名校
1 . 若函数
,则对于满足
的任意实数
,有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc092a02fca5a3719f4a4c40308fe21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a633afe66a40f866029ceeae39f353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
2 . 下列说法错误的是( )
A.直线![]() ![]() ![]() |
B.“![]() ![]() ![]() |
C.若直线![]() ![]() ![]() ![]() ![]() |
D.经过点![]() ![]() ![]() ![]() |
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3 . 已知点
,
,则直线
的倾斜角![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ed34373675f4e56fb27968daecd21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b19d7d0c1ecafd351c2df82352467d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
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4 . 双曲线
,左右顶点为
为右支上一点且
不重合,过点
作
轴于点
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ebf5c4fa6b77f00f30dee43562c080.png)
______ 度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81644fa3f1218ed5c9b6d8d16afb4786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15bebf4417f17ba00e6e1f98ff4c5717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb66d3afe6f356b9dccbb752106fd60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465aec2e55491394d6a8bfa3ffb2b833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f5695e2dcda2f8721b3092965e22f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ebf5c4fa6b77f00f30dee43562c080.png)
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5 . 设
的图象与任何斜率不小于2的直线至多有1个公共点,则
的范围为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9793ffcfa3a32d392d24d55af3468c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 已知直线
中的
、
、
是取自集合
中的3个不同的元素,并且该直线的倾斜角为锐角.那么这样的直线的条数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371fbbc413ae5c27fbdf419e401864fc.png)
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