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[" If the function "f(x)=x^(2)-kx+5" is ...

[" If the function "f(x)=x^(2)-kx+5" is increasing on "[2,4]" ,then "],[[" (a) "k in(2,oo)," (b) "k in(-oo,2)," (c) "k in(4,oo)," (d) "]]

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