14-15高一上·辽宁·期末
名校
1 . 如图所示,
中,已知顶点
,
的内角平分线方程是
过点
的中线方程为
.求顶点
的坐标和直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5132a350f40fa8203f9a1a64170f24e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20ddb47a11c7437bb32cf7a45f40d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7efce53112cb81e71cb22d06cd27c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/23/bdc7b057-ea78-4db3-a1b4-1989e5579ed7.png?resizew=141)
您最近一年使用:0次
2020-02-11更新
|
239次组卷
|
5卷引用:2013-2014学年辽宁省五校高一上学期期末联考数学试卷
真题
2 . 某人在一山坡P处观看对面山项上的一座铁塔,如图所示,塔高
(米),塔所在的山高
(米),
(米),图中所示的山坡可视为直线
且点
在直线
上,
与水平地面的夹角为
,
,试问此人距水平地面多高时,观看塔的视角∠BPC最大(不计此人的身高)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db5762b56776ede22f9f907742af6ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a42bfa921d9376c600dd6d15fd0979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d191aee5634baf865310e71e57d7c0ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2015/11/5/1572280366686208/1572280372862976/STEM/e22eaefbeba54d23b117d6f00cab5026.png?resizew=9)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef966cdd137b3b10e290201b4d17542e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/11/5cf472be-2e29-4804-a96f-4c11f330b299.png?resizew=278)
您最近一年使用:0次
2016-12-03更新
|
568次组卷
|
3卷引用:2015-2016学年辽宁沈阳东北育才学校高二上学期第一次作业数学试卷