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If the locus of centre of circle which cuts the circles x2+y2+4x−6y+9=0 and x2+y2−4x+6y+4=0 orthogonally is ax+by+c=0 then a+b+c is equal to |
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Answer» If the locus of centre of circle which cuts the circles x2+y2+4x−6y+9=0 and x2+y2−4x+6y+4=0 orthogonally is ax+by+c=0 then a+b+c is equal to |
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