1 . 若过点P(1-a,1+a)与Q(4,2a)的直线的倾斜角为钝角,且m=3a2-4a,则实数m的取值范围是________ .
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2019-08-17更新
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1004次组卷
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5卷引用:智能测评与辅导[文]-直线与圆
智能测评与辅导[文]-直线与圆(已下线)狂刷40 直线与方程-学易试题君之小题狂刷2020年高考数学(理)(已下线)专练13 倾斜角与斜率-2021-2022学年高二数学上册同步课后专练(人版A版选择性必修第一册)(已下线)第05讲 倾斜角与斜率(教师版)-【帮课堂】2023版 湘教版(2019) 选修第一册 过关斩将 第2章 2.1 直线的斜率
2 . 函数
的图象在点
处的切线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d68a1bf675a2fd319cbf6590bb4abb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81158db42116f74e7b26e100f88dd535.png)
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3 . 已知
是以
为直径的半圆弧上的动点,
为圆心,
为
中点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10908218148af79fd79ec92061652af3.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10908218148af79fd79ec92061652af3.png)
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名校
4 . 把3名辅导老师与6名学生分成3个小组(每组1名教师,2名学生)开展实验活动,但学生甲必须与教师A在一起,这样的分组方法有________ 种.(用数字作答)
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2019-09-15更新
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355次组卷
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2卷引用:山西省应县第一中学校2018-2019学年高二下学期期末考试数学(理)试题
真题
5 . 如图所示,过
外一点
作一条直线与
交于
,
两点,已知
,点
到
的切线长
,则弦
的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fca8c94add435f4aefb933ffe55a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
6 . (陕西高考)如图,△ABC中,BC=6,以BC为直径的半圆分别交AB,AC于点E,F,若AC=2AE,则EF=________ .
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758848850362368/1816566449332224/STEM/9a1fb7716a0344a48c78a8c9b1b8b76a.png?resizew=94)
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2017-11-13更新
|
128次组卷
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2卷引用:2017-2018学年人教版高中数学选修4-1:模块综合检测(一)
7 . 如图所示,AB是半圆O的直径,点C在半圆上,CD⊥AB于点D,且AD=3DB,设∠COD=θ,则tan2
=__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16d92d3ccdf0ecfaa43eb8ed62ae5a4.png)
![](https://img.xkw.com/dksih/QBM/2017/8/14/1758200027602944/1817081830195200/STEM/027e6e38fed14b0d94131d2fd983e44c.png?resizew=107)
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名校
8 . 如图,
,垂足分别为
,若
,则
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5be3facae1ecc4cc1c2cb96280f92ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14af8de7575341e02ee92cd0e33312b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e493fab43e5cf7aa9675e0c40fe15fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2017/8/18/1754646343540736/1754861942030336/STEM/0dce344eb15b4d779ecf09556f41a6d2.png?resizew=118)
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2010高三·全国·专题练习
9 . 如图所示,过
外一点
作一条直线与
交于
,
两点,已知
,点
到
的切线长
,则弦
的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fca8c94add435f4aefb933ffe55a01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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