Question: If $\mathrm{f}: \mathrm{R} \rightarrow \mathrm{R}$ is a differentiable function and
$f(2)=6$, then $\lim _{x \rightarrow 2} \int_{6}^{f(x)} \frac{2 t d t}{(x-2)}$ is :-
0
$2 f^{\prime}(2)$
$12 f^{\prime}(2)$
$24 f^{\prime}(2)$
Correct Option: , 3
Solution: