What is the equation of polar of the point (1, 2) with respect to the circle x2+y2+8x+2y+1 = 0
equation of polar is given by,
x+2y+82.(x+1)+22.(y+2)+1=0
5x+3y+7=0.
Find the equation of the circle passing the point (1, 2) and touching the line 2x + y - 1 = 0 at the point (1, -1).