Manipal Entrance Test 2019 Math Paper

The equation of lines are x + y = 0 and x - y = 0
∴ The equation of bisectors of the angles between these lines are

x+y

1+1

=±

x−y

√1+1

⇒x+y=±(x−y) ....(ii)
Taking + ve sign, we get y = 0.
Taking - ve sign, we get x = 0.
Hence the equation of bisectors are x = 0, y = 0 .