7. If the orthocentre of the triangle formed by the lines 2x+3y-1 0, x+2y-1-0, ax +by-1-0 is at origin then find (a, b)

If the orthocentre of the triangle formed by the lines 2x + 3y -1 = 0, x +2y -1=0, ax + by -1=0 is at the origin then (a,b) is given by.

If the otrhocentre of the triangle formed by the lines 2x + 3y -1 = 0, x +2y -1=0, ax + by -1=0 is at the origin then (a,b) is given by.

If the otrhocentre of the triangle formed by the lines 2x + 3y -1 = 0, x +2y -1=0, ax + by -1=0 is at the origin then (a,b) is given by.

Orthocentre of the triangle formed by the lines x+y=1 and x y=0 is

The orthocentre of the triangle formed by the lines xy=0 and x+y=1 is

Orthocentre of the triangle formed by the lines xy=0 and x+y=1 is

The orthocentre of the triangle formed by the lines xy=0 and x+y=1 , is