直线AB:
(y-0)/(y+3)=(x+5)/(x-3)
即3x+8y+15=0
直线BC:
(y+3)/(y-2)=(x-3)/(x-0)
即5x+3y-6=0
直线AC:
(y-0)/(y-2)=(x+5)/(x-0)
即2x-5y+10=0
直线BC的中点坐标:
x=(3+0)/2=3/2
y=(-3+2)/2=-1/2
即点(3/2,-1/2)
直线BC边中线所在的直线方程:
(y-0)/(y+1/2)=(x+5)/(x-3/2)
即x+13y+5=0
直线AB:
(y-0)/(y+3)=(x+5)/(x-3)
即3x+8y+15=0
直线BC:
(y+3)/(y-2)=(x-3)/(x-0)
即5x+3y-6=0
直线AC:
(y-0)/(y-2)=(x+5)/(x-0)
即2x-5y+10=0
直线BC的中点坐标:
x=(3+0)/2=3/2
y=(-3+2)/2=-1/2
即点(3/2,-1/2)
直线BC边中线所在的直线方程:
(y-0)/(y+1/2)=(x+5)/(x-3/2)
即x+13y+5=0