The lines `(p-q)x+(q-r)y+(r-p)=0(q-r)x+(r-p)y+(p-q)=0,(x-p)x+(p-q)y+(q-r)=0`

x^(p-q).x^(q-r).x^(r-p)

Add p(p-q),q(q-r) and r(r-p)

The roots of the equation (q-r)x^2+(r-p)x+p-q=0 are (A) (r-p)/(q-r),1 (B) (p-q)/(q-r),1 (C) (q-r)/(p-q),1 (D) (r-p)/(p-q),1

The solution of equation (p+q-x)/(r)+(q+r-x)/(p)+(r+p-x)/(q)+(3x)/(p+q+r)=0 is

Solve x^(2)+x(r-q)-(p-r)(p-q)=0

If p.q,r are distinct,then (q-r)x+(r-p)y+(p-q)=0 and (q^(3)-r^(3))x+(r^(3)-p^(3))y+(p^(3)-q^(3))=0 represents the same line if

Prove that equations (q-r)x^(2)+(r-p)x+p-q=0 and (r-p)x^(2)+(p-q)x+q-r=0 have a common root.

Add:p(p-q),q(q-r) and r(r-p)2x(z-x-y) and 2y(z-y-x)