x+y=0

If OA and OB are equal perpendicular chords of the circles x^(2)+y^(2)-2x+4y=0, then the equations of OA and OB are,where O is the origin.3x+y=0 and 3x-y=03x+y=0 and 3y-x=0x+3y=0 and y-3x=0x+y=0 and x-y=0 and y-3x=0

The equation of the diagonal through origin of the quadrilateral formed by the lines x = 0, y = 0, x + y - 1 = 0 and 6x + y - 3= 0, is

If Delta= [[0 , x , -y ],[-x , 0 , z],[ y , -z , 0 ]] then

If |(y,x,0),(0,y,x),(x,0,y)|=0 and x ne 0 , then which one of the following is correct ?

The equation of the diagonal through origin of the quadrilateral formed by the lines x=0,y=0,x+y-1=0 and 6x+y-3=0, is

If 0 (A) x=45^(0), y=15^(0) (B) x=45^(0), y=135^(0) (C) x=165^(0), y=15^(0) (D) x=165^(0), y=135^(0)