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[" Let "f(x)={[2-x+a^(2)-9a-9," for "x<2...

[" Let "f(x)={[2-x+a^(2)-9a-9," for "x<2],[2x-3," for "x>=2]],[" where "a" is a positive constant,If "f(x)" has local min- "],[" imum at "x=2," then "a" lies in the interval "],[[" (A) "(0,1]," (B) "[10,oo)],[" (C) "[1,10]," (D) "[2,10)]]

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