Three lines `px+qy+r=0`, `qx+ry+p=0` and `rx+py+q=0` are concurrent , if

Let p, q, r be distinct positive numbers. Three lines p x+q y+r=0, q x+r y+p=0 and r x+p y+q=0 are concurrent, if

Three lines px + qy+r=0, qx + ry+ p = 0 and rx + py + q = 0 are concurrent of

The three straight lines px+qy+r=0, qx+ry+p=0 ane rx+py+q=0 are concurrent if p+q+r=0 .

The lines px +qy+r=0, qx + ry + p =0,rx + py+q=0, are concurrant then

The lines px +qy+r=0, qx + ry + p =0,rx + py+q=0, are concurrant then

The lines px +qy+r=0, qx + ry + p =0,rx + py+q=0, are concurrant then

If lines px+qy+r=0,qx+ry+p=0 and rx+py+q=0 are concurrent,then prove that p+q+r=0 (where p,q,r are distinct )

The lines px+qy+r=0,qx+ry+p=0,rx+py+q=0 are concurrant then

If a, b, c are the pth, qth, rth terms respectively of an H.P. , then the lines bcx + py+1=0, cax + qy+1=0 and abx+ry+1=0 (A) are concurrent (B) form a triangle (C) are parallel (D) none of these

If a, b, c are the pth, qth, rth terms respectively of an H.P. , then the lines bcx + py+1=0, cax + qy+1=0 and abx+ry+1=0 (A) are concurrent (B) form a triangle (C) are parallel (D) none of these