iran-konkur 2013 Q114

iran-konkur · Other · konkur-riazi_1392 Chain Rule Limit Evaluation Involving Composition or Substitution
114- What is $\displaystyle\lim_{x \to \pi} \dfrac{\sin(1 + \cos x)}{1 - \cos 2x}$?
(1) $\dfrac{1}{4}$ (2) $\dfrac{1}{2}$ (3) $1$ (4) $2$
114- What is $\displaystyle\lim_{x \to \pi} \dfrac{\sin(1 + \cos x)}{1 - \cos 2x}$?

(1) $\dfrac{1}{4}$ \hfill (2) $\dfrac{1}{2}$ \hfill (3) $1$ \hfill (4) $2$