Question

The equation of
the normal at
P(x,y:) to the
circle
x2 + y2 + 2gx + 2 fy+c=0
is​

Answer 1

Step-by-step explanation:

(x^2+2gx)+(y^2+10fy)=c

Now, completing the squares within the parentheses, we get

(x^2+2gx+g^2)+ (y^2+10fy+(5f)^2)=c+g^2+(5f)^2

=(x+g)^2+(y+5f)^2=..........