1 . 设
为实数,直线
,
.若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569c12013c16b535a57fa39b30eb00bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d15d70d641412713f2447714851b187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027830fc47290062692964077ee481e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 判断下列各组直线是否平行,并说明理由:
(1)
,
;
(2)
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc2895c0affcb5a43c53f14d97211bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d021f31b88c2e05b702addeec146b5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318edf3fb35b60d437703cefae703c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ca7c2ecfa67cbbec8889e49950b2df.png)
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3 . 解答下列各题:
(1)已知四点
,
,
,
,求证:
;
(2)已知直线
,
,求证:
.
(1)已知四点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56ef909d25c9b62dc9ce23e6ac1ee9e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b6e10e3965fafb04ec4e78232b4b337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05029046ee04857d5edf4aade4b1fb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca33f6037f1e69966357d4890c38522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25bfe8b07ce99c70ec02b4301a1e59f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b342789dbe8cc86922c0523218f4500b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
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解题方法
4 . 如图,已知三角形的顶点为
,
,
,求边
上的高
所在直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a6be776cdd229e5c1339265b23624a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e5c320d78ef38e330176c335cc58e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b01e555bf9cbc0a88f92dbf05166add2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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5 . 判断下列各对直线是否垂直.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8734c2c51fd8db5255e08715142cb17.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4da95f9167ada728abc4a2cc9fb1ca9.png)
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6 . 判断下列各对直线的位置关系,如果相交,求出交点的坐标.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270277218b2b04f333ea548a0db63086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0782d79cde52947b8147e3970d306425.png)
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23-24高二上·全国·课后作业
解题方法
7 . 写出满足下列条件的直线的方程:
(1)垂直于向量
,并且经过点
;
(2)平行于向量
,并且经过点
.
(1)垂直于向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6646e758862a34d89ee14de8a1ea13b2.png)
(2)平行于向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa869e3b4fb54975822f0b8978b164b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266504a4bd910b292c74765dc9772f62.png)
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23-24高二上·全国·课后作业
名校
解题方法
8 . 如图,已知
的顶点为
,
,
,AD是BC边上的高,AE是
的平分线.
(2)求AE所在直线的方程.(提示:在
上取与
长度相等的向量
,则
的方向就是
的方向.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5a6145990adf5574f0e0f2fc828ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d31cd03879d5c69ff11d0923f1ee82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49179dbfbc8e207aa92fd72060fba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)求AE所在直线的方程.(提示:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d61a902c8845c5ae84ac0c64cd00490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2207e72b4c4b6661b70fe8a6936fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
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2023-09-12更新
|
539次组卷
|
8卷引用:2.2 直线的方程
(已下线)2.2 直线的方程湘教版(2019)选择性必修第一册课本习题 习题2.2重庆市涪陵区部分学校2023-2024学年高二上学期第一次月考数学试题山东省枣庄市第八中学2023-2024学年高二上学期第一阶段性检测数学试题(一) (已下线)福建省莆田第四中学2023-2024学年高二上学期第一次(10月)月考数学试题贵州省贵阳市观山湖区第一高级中学2023-2024学年高二上学期9月月考数学试题(已下线)第一次月考检测模拟试卷(原卷版)(已下线)专题04 直线方程综合应用难题(12题型)-【巅峰课堂】2023-2024学年高二数学上学期期中期末复习讲练测(人教A版2019选择性必修第一册)
23-24高二上·全国·课后作业
9 . 如图,在等边三角形ABC中,点D,E分别在边BC,AC上,且
,
,AD,BE相交于点P.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60060c15b8d7f34a740a9088da9e59e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5dd50b4c02845cb6ea2abf91221be27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108ed83f0d6595284e1f9d27c06150e9.png)
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