(1)求直线
恒过的定点坐标;
(2)设直线l过点
且与直线
垂直,l与x轴,y轴分别交于A、B两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa1c2406c5453dc2ce6b7e25f99c300.png)
(2)设直线l过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9231260a2de7949154b7244bf70785c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
20-21高二上·安徽安庆·期中 查看更多[2]
更新时间:2020-12-30 16:12:17
|
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】已知
的顶点
,
,边
上的中线
的方程为
,边
所在直线的方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde7c11aecf86f926df46477a019e0b4.png)
(1)求边
所在直线的方程,化为一般式;
(2)求顶点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c84818cfbd9a885081cb4e3294eabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbdef5d0c05acbf63fa72fa85c5bb45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabfd32465e9e50409413d9c1358279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde7c11aecf86f926df46477a019e0b4.png)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求顶点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】已知三角形的三个顶点为
,
,
,求:
(1)BC所在直线的方程;
(2)BC边上的中垂线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc59979afc2620b046822c643391168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96726374e05330dd8e2abd924b4058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e92800c8a8cf3ab792ab9e61b8fb35.png)
(1)BC所在直线的方程;
(2)BC边上的中垂线的方程.
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】在平面直角坐标系xOy中,已知
的三个顶点的坐标分别为
,
,
.
(1)求经过点A且与直线BC平行的直线方程;
(2)在
中,求BC边上的高线所在的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14cd46db17d64f86660b987402503a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9087a172288f3e733a894e76ec160b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dba5cc987db7f50f9b8e2d4544006d.png)
(1)求经过点A且与直线BC平行的直线方程;
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】求经过直线
与直线
的交点M,且满足下列条件的直线方程.
(1)与直线
平行;
(2)与直线
垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e7f3102940c677b67c698c9f2049dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c4aacbad159087536fa646632ffbfd.png)
(1)与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8846bb4afc7ea919accea45f0edffb4.png)
(2)与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8846bb4afc7ea919accea45f0edffb4.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
解题方法
【推荐1】已知圆
.
(1)求证:该圆恒过一定点;
(2)若该圆与圆
相切,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64668afd8781b54c6ccea9bc7da06562.png)
(1)求证:该圆恒过一定点;
(2)若该圆与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】在
中,
,D,E为斜边AB的三等分点,
,求斜边AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462e6f0490ce8a57053aa3029ea6d0be.png)
您最近一年使用:0次