设直线
与直线
相交于一点
.
(1)求点
的坐标;
(2)求经过点
,且垂直于直线
的直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b66b4d8ac9d663e693fd63caa2c6503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6130d50fa96d22d13a412b42605665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
更新时间:2021-12-10 20:57:59
|
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解答题-问答题
|
容易
(0.94)
解题方法
【推荐1】已知
的顶点坐标分别为
,求
边上的高
所在的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e57f2f74e225567f9800be271cb8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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容易
(0.94)
【推荐2】分别求过点
,且垂直于下列直线的直线的方程:
(1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e8f7e3beb2c3bc522d5bde3dd93af4.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e36bce66f515b263aa06a5bbd0f25c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cac311a0dde0fc8ac09b749ec6e2b026.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776b26892877019247c7a50f735b0f01.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca8e3b654909a9d5e1cf044fc3ee49d.png)
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解答题-问答题
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容易
(0.94)
解题方法
【推荐1】求经过两条直线
和
的交点,且垂直于直线
的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aa3adcb154f6144903d456289ecb0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3275361febe6813d9efcee12334e9842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b763716a92094de136e84e45b2b5ad.png)
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(0.94)
【推荐2】在
中,
边上的高所在的直线的方程为
,
的平分线所在直线的方程为
,若点
的坐标为
.
(1)求点
的坐标;
(2)求直线BC的方程;
(3)求点C的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988c789b2d2be84d523e42e9e1a2ea43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c267a7a677046db99ce9a6bca655c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求直线BC的方程;
(3)求点C的坐标.
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