Question

If x²+y²+2gx+2fy-12=0 represent a circle with centre (2,3)find g,f and Radius
Explain step by step please​

Answer 1

radius = 1

Step-by-step explanation:

c= -12

centr=(-g, -f) =(2,3)

g=-2,f=-3

radius =√g^2+f^2 -c

=√2^2+3^2-12=√4+9-12=√13-12=√1=1