" 5."(x+y,0)=(2,x-y)

The three sides AB, BC, CA of a triangle are 5x - 3y +2 = 0,x-3y-2=0 and x+y-6=0 respectively. Find equation of the altitude through the vertex A.

Circum centre of the triangle formed by the lines x+y=0,2x+y+5=0,x-y=2 is

{:(2x - 5y + 4 = 0),(2x + y - 8 = 0):}

Solve: {:(2x - 5y + 4 = 0),(2x + y - 8 = 0):}

Solve : 3x- 5y + 1=0 2x - y + 3=0

The figure formed by the lines 2x-5y+4=0, 5x+2y+7=0, 2x-5y+3=0, 5x+2y-6=0 is

Solve the following systems of homogenous equations: {:(x+y +z = 0),(x - y -5z = 0),(x + 2y +4z = 0):}

Three sides AB,AC and CA of triangle ABC are 5x-3y+2=0,x-3y-2=0 and x+y-6=0 respectively.Find the equation of the altitude through the vertex A.

O, A, B are vertices of triangle whose sides are given by (5x+12y)^(2)-3(12x-5y)^(2)=0, 5x+12y-78=0 then AB =