1 . 直线
的倾斜角为
,则
的值是___________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137501184/STEM/263c7cc609ee4f1b87a259f8306f5209.png?resizew=132)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137501184/STEM/6666c386450b44b5b31d8963a5e91cf2.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137501184/STEM/c94b0346f36e4ebfabe47e55f244f6b7.png?resizew=17)
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11-12高三·山东烟台·期末
2 . 已知等差数列{an}的前n项和为Sn,且S2=10,S5=55,则过点P(n,an)和Q(n+2,an+2)(n∈N*)的直线的斜率为__ .
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10-11高一下·湖北武汉·期末
3 . 三角形
中,已知
,则
边上的高
所在的直线方程为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d83e3c67466495b35352acf9a2143585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
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10-11高一下·贵州遵义·期末
4 . 已知点
、
,若直线
与线段
有公共点,则斜率
的取值范围是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd162f6b5ea3023b9126daf61e76428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e5eea5f7f98ca8632358b7e49ceb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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5 .
为双曲线
右支上除顶点外任一点,
、
为双曲线的左右顶点,直线
、
的分别斜率为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d82f6055983b8e9bb5a9cd8e09ebe5.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c857dc9f7befdcc69d64cf96860969.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/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc48974114e23f5a801843710c7ae21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d82f6055983b8e9bb5a9cd8e09ebe5.png)
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9-10高一下·河北石家庄·期末
解题方法
6 . 将一张坐标纸折叠,使得点(0,2)与点(-2,0)重合,且点(2009,2010)与点(m,n)重合,则m-n的值为___
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