瑞士著名数学家莱昂哈德·欧拉于1765年在他的著作《三角形的几何学》中首次提出定理:三角形的重心、垂心和外心三点共线.后人把这条直线称为三角形的“欧拉线”.已知等腰
的三个顶点是
,
,
,且其“欧拉线”与圆
:
相交于点
,
两点,则
的“欧拉线”方程为_________ ,弦长![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c1546b11d74c783683886a760065ad.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215cf9cfac95af95708707f14438675f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29fc95526a39ae87a6e736900fb90e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c052d7af2f98d95bac8725b608fba0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc08a69b06ed44bbc62dddaff2cd037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c1546b11d74c783683886a760065ad.png)
更新时间:2022-11-01 17:57:19
|
相似题推荐
填空题-单空题
|
适中
(0.65)
名校
【推荐1】直线
经过点
,且分别与直线
和
相交于
,
两点,若
,则直线
的方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fdff3419e4f5b7103b1e4a010c4802e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51dcacab5f3eff9fc61bb7e25c9b0a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92cf6c554d7ea0ad11ebb82c97f1e54.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/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐2】在平面直角坐标系xOy中,
的顶点
的坐标为
,
边上的中线
所在的直线方程为
,
的角平分线所在的直线方程为
,则直线
的方程为________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636e471cf2e1904f72ca6ad4c8f0378a.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/1b979396a703fb14715ba39232f5786a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9450684ca4c5f6ee21f226f5f40abe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
填空题-双空题
|
适中
(0.65)
名校
【推荐1】已知直线
,则圆
截直线
所得的弦长的最小值是________ ;直线
与曲线
有两个公共点,则实数
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9d987264d2068cb9472e975dd33c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3880d0e73ec5a29eeca36d45a6bc237b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4beb424850f2cdd3d688bd760ce0684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐2】在平面直角坐标系
中,已知圆
,线段
是圆
的一条动弦,且
,线段
的中点为
,则直线
被圆
截得的弦长取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f1fc0a0c05ac7092ffab75dc276e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13211ed42826bd713f14e8cb0d48ef63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
您最近一年使用:0次