$\lim_{x \to \frac{\pi}{2}} \dfrac{\cot x - \cos x}{(\pi - 2x)^3}$ equals
(1) $\dfrac{1}{24}$
(2) $\dfrac{1}{16}$
(3) $\dfrac{1}{8}$
(4) $\dfrac{1}{4}$
$\lim_{x \to \frac{\pi}{2}} \dfrac{\cot x - \cos x}{(\pi - 2x)^3}$ equals\\
(1) $\dfrac{1}{24}$\\
(2) $\dfrac{1}{16}$\\
(3) $\dfrac{1}{8}$\\
(4) $\dfrac{1}{4}$