椭圆x2/a2+y2/b2=1(a>b>0)的离心率为根号下3/2且经过点M(2,1)直线y=(1/2)x-1与椭圆相交于AB两点求三角形MAB的内心的横坐标
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![椭圆x2/a2+y2/b2=1(a>b>0)的离心率为根号下3/2且经过点M(2,1)直线y=(1/2)x-1与椭圆相交于AB两点求三角形MAB的内心的横坐标](/uploads/image/z/13302128-56-8.jpg?t=%E6%A4%AD%E5%9C%86x2%2Fa2%2By2%2Fb2%3D1%28a%EF%BC%9Eb%EF%BC%9E0%29%E7%9A%84%E7%A6%BB%E5%BF%83%E7%8E%87%E4%B8%BA%E6%A0%B9%E5%8F%B7%E4%B8%8B3%2F2%E4%B8%94%E7%BB%8F%E8%BF%87%E7%82%B9M%EF%BC%882%2C1%EF%BC%89%E7%9B%B4%E7%BA%BFy%3D%281%2F2%29x-1%E4%B8%8E%E6%A4%AD%E5%9C%86%E7%9B%B8%E4%BA%A4%E4%BA%8EAB%E4%B8%A4%E7%82%B9%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2MAB%E7%9A%84%E5%86%85%E5%BF%83%E7%9A%84%E6%A8%AA%E5%9D%90%E6%A0%87)
椭圆x2/a2+y2/b2=1(a>b>0)的离心率为根号下3/2且经过点M(2,1)直线y=(1/2)x-1与椭圆相交于AB两点求三角形MAB的内心的横坐标
椭圆x2/a2+y2/b2=1(a>b>0)的离心率为根号下3/2且经过点M(2,1)直线y=(1/2)x-1与椭圆相交于AB两点
求三角形MAB的内心的横坐标
椭圆x2/a2+y2/b2=1(a>b>0)的离心率为根号下3/2且经过点M(2,1)直线y=(1/2)x-1与椭圆相交于AB两点求三角形MAB的内心的横坐标
e=根号下3/2=c/a,c^2/a^2=3/4,a^2=b^+c^2,点M(2,1)一起代人椭圆,求出椭圆,然后把直线代人椭圆求出,交点A,B坐标.设出内心坐标(m,n),到AB,AM,BM距离相等,就能求出内心