Question
If $\displaystyle\lim_{x \rightarrow 0} \frac{\sin(2+x) - \sin(2-x)}{x} = A \cos B$, then the values of $A$ and $B$ respectively are.
If $\displaystyle\lim_{x \rightarrow 0} \frac{\sin(2+x) - \sin(2-x)}{x} = A \cos B$, then the values of $A$ and $B$ respectively are.