问题的关键在于,由等差数列得出 AC+CB=2AB=12
由这个条件,你应当可以有椭圆的定义联系起来了吧
已知三角形ABC,A(3,0) B(一3,0),三边长AC,AB,BC长成等差数列,求顶点C的轨迹方程 >>>> 知道的,.谢
已知三角形ABC,A(3,0) B(一3,0),三边长AC,AB,BC长成等差数列,求顶点C的轨迹方程 >>>> 知道的,.谢
数学人气:767 ℃时间:2019-10-11 14:08:11
优质解答
我来回答
类似推荐
- 已知在三角形ABC中,A(3,0),(-3,0),且三边AC,AB,BC的长呈等差数列,求顶点C的轨迹方
- △ABC三边成等差数列且a>c>b,已知顶点A(-1,0),B(1,0),则顶点C的轨迹方程为( ) A.x24+y23=1(x≠0) B.x24+y23=1(y≠0) C.x24+y23=1(x<0) D.x24+y23=1(x<0,y
- 在△ABC中,顶点A,C的坐标分别为(-1,0),(1,0),三边长|AB|,|AC|,|BC|成等差数列,求顶点B的轨迹方程.
- 已知△ABC的顶点A(3,0)B(-3,0),且三边AC,AB,BC依次成等差数列,则顶点C 的轨迹方程
- 三角形ABC的三边长a.b.c成等差数列且满足a大于b大于c,A,C两点的坐标分别是(-1,0),(1,0),求顶点B的轨迹方程
猜你喜欢
- 1I want to send a letter to you.please tell me your (a.)
- 2英语翻译
- 3why don't you forget about it?although she's wro
- 4三角形ABC的周长为24厘米,三边为a.b.c,且a+b=2b.2a-b=2c,求a.b.c
- 5Which one is correct?
- 6清荣峻茂,良多趣味怎么翻译
- 7My friend tells me that the doctor _____is leaving for Shanghai next month.A.B.C
- 8二氧化硫和三氧化硫中所含氧元素的质量相等,则二氧化硫和三氧化硫的质量比为______
- 9八年下英文作文,Are you healthy or unhealthy?What do you every day?What do you have every week?
- 10甲乙两人在湖边跑步环湖一周长480米乙每分钟跑80米甲每分钟跑100米.两人同时向前跑起跑时甲在乙前面100米.多少分钟后两人相遇