The length of the shortest chord of the circles x' + y2 + 2gx + 2fy + – InterviewSolution

1.	The length of the shortest chord of the circles x' + y2 + 2gx + 2fy + c = 0 which passes through thepoint (a, b) inside the circle is(A) 2(a2 +b+ 2ga + 2fb +c)12(C) [-2(a2 +b+ 2ga + 2fb +c)]2(B) 2 [-(a2 +b2+2ga +2fb +c)]'2(D) 2 [-(a2 + b2 + 2ga + 2fb-c)]1/21/2
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