[" 1.Paper "],[" 49) "f:[a,b]rarr[5,6]" ...

[" 1.Paper "],[" 49) "f:[a,b]rarr[5,6]" be defined as "y=f(x)=2x^(3)-9x^(2)+12x+1" Then which of the following is true? "],[" A) Minimum value of a for "y=f(x)" to be a one-one function is "(1)/(2)],[" B) Maximum value of a for "y=f(x)" to be a one-one function is "2],[" C) Minimum value of b for "y=f(x)" to be an onto function is "1" ."],[" D) Maximum value of b for "y=f(x)" to be an onto function is "(5)/(2)]

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