Tangents OP and OQ are drawn from the origin 'O' to the circle x²+y²+2gx+2fy+c=0 with centre C. Prove that the area of the quadrilateral OPCQ is √[c(g²+f²-c)]
Tangents OP and OQ are drawn from the origin 'O' to the circle x²+y²+2gx+2fy+c=0 with centre C. Prove that the area of the quadrilateral OPCQ is
√[c(g²+f²-c)]