Question

The points A B C are collinear having a b c tangent to it prove that a2BC+b2AC+c2AB=0

Answer 1

Answer:

Step-by-step explanation:

If points are collinear, then area=0

or(  

2

1

​  

)[a(d−b+d)−b(c−a+c)+1(cb−cd−ad+cd)]=0

a(2d−b)−b(2c−a)+(cd−ad)=0

2ad−ab−2bc+ab+cb−ad=0

ad−bc=0

orad=bc