The three straight lines ax+by=c, bx+cy=a and cx +ay =b are collinear, if

The three striaght lines ax+by=c, bx+cy=a and cx+ay=b are collinear if:

Prove that the straight lines ax+by+c=0,bx+cy+a=0and cx+ay+b=0 are concurrent if a+b+c=0.When a!=b!=c .

If the straight lines ax+by+c=0, bx+cy+a=0 and cx+ay+b=0 are concurrent, then prove that a^(3)+b^(3)+c^(3)=3abc

If the straight lines ax + by + c= 0 , bx +cy + a = 0 and cx +ay + b =0 are concurrent , then prove that a^(3)+b^(3)+c^(3)=3abc .

Prove that the lines ax+by + c = 0, bx+ cy + a = 0 and cx+ay+b=0 are concurrent if a+b+c = 0 or a+b omega + c omega^(2) + c omega = 0 where omega is a complex cube root of unity .

The lines ax+by+c=0, bx+cy+a =0, cx+ay+b =0 are concurrent when-

If the lines ax+by+c=0,bx+cy+a=0 and cx+ay+b=0 be concurrent,then: