If f : R → R f is a differentiable function and \(\begin{array}{*{20}{c}}{{\rm{}}f\left( 2 \right) = 6,{\rm{\;then\;}}\mathop {lim}\limits_{x \to 2} \mathop \smallint \nolimits_6^{f\left( x \right)}\frac{{2tdt}}{{\left( {x - 2} \right)}}}\end{array}\) is

If f : R → R f is a differentiable function and \(\begin{array}{*{20

1.	If f : R → R f is a differentiable function and \(\begin{array}{*{20}{c}}{{\rm{}}f\left( 2 \right) = 6,{\rm{\;then\;}}\mathop {lim}\limits_{x \to 2} \mathop \smallint \nolimits_6^{f\left( x \right)}\frac{{2tdt}}{{\left( {x - 2} \right)}}}\end{array}\) is
A.	24f' (2)
B.	2f' (2)
C.	0
D.	12f' (2)
Answer» E.

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If f : R → R f is a differentiable function and \(\begin{array}{*{20}{c}}{{\rm{}}f\left( 2 \right) = 6,{\rm{\;then\;}}\mathop {lim}\limits_{x \to 2} \mathop \smallint \nolimits_6^{f\left( x \right)}\frac{{2tdt}}{{\left( {x - 2} \right)}}}\end{array}\) is

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