The circles a x^2+a y^2+2 g_1 x+2 f_1 y+c_1=0 and b x^2+b y^2+2 g_2 x+2 f_2 y+c_2=0 (a \neq 0 and b \neq 0) cut orthogonally if

Correct Answer is : 2(g1g2+f1f2)=bc1+ac2

b g_1 g_2+a f_1 f_2=b c_1+a c_2

COMEDK Exam 2016 Solved Paper

Question : 147 of 180

Marks: +1, -0

The circles ax2+ay2+2g1x+2f1y+c1=0 and bx2+by2+2g2x+2f2y+c2=0
(a≠0 and b≠0) cut orthogonally if

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