if two circles x2+y2+ 2g1x+2f1y+c1=0 and x2+y2+2g2x+2f2y+c2 are orthogonal then prove that g1*g2 +f1*f2=c1+c2/2

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Question

if two circles x2+y2+ 2g1x+2f1y+c1=0 and x2+y2+2g2x+2f2y+c2 are
orthogonal then prove that g1*g2 +f1*f2=c1+c2/2

Lovina Kansal · Accepted Answer

Dear student
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