A ray of light coming from the point `(1, 2)` is reflected at a point `A` on the line `x+y+1=0`
Channel: Doubtnut
Date: 26/01/2020

A ray of light coming from the point `(1, 2)` is reflected at a point `A` on the line `x+y+1=0` and passes through the point `(7, -4)` then the orthocentre of triangle whose first side is `5x-y+13=0, 2^(nd)` sides is x-axis and `3^(rd)` side lies along the reflected ray is :