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[" 25.If the circles "x^(2)+y^(2)+2ax+cy+a=0" and "x^(2)+y^(2)-3ax+dy-1=0" intersect in two "],[" and "Q" then the line "5x+by-a=0" passes through "P" and "Q" for "-],[[" (1) exactly one value of a "," (2) no value of a "],[" (3) infinitely many values of a "," (4) exactly two values of a "]]

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