| p{6cm}} (2) $\dfrac{2}{1-x}$ | (1) $\dfrac{2}{x-1}$ |
| [18pt] (4) $\dfrac{1}{2-x}$ | (3) $\dfrac{1}{x-2}$ |
| p{6cm}} (2) $60$ | (1) $-120$ |
| [6pt] (4) $120$ | (3) $-60$ |
\textbf{110-} The figure below shows the graph of the function $y = \sin^{-1}(U(x))$. What is the rule $U(x)$?
\textit{[Figure: graph of $y = \sin^{-1}(U(x))$ with a point marked at $x = -1$ and $x = 3$]}
\begin{tabular}{p{6cm} p{6cm}}
(2) $\dfrac{2}{1-x}$ & (1) $\dfrac{2}{x-1}$ \\[18pt]
(4) $\dfrac{1}{2-x}$ & (3) $\dfrac{1}{x-2}$
\end{tabular}
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\textbf{111-} What is the value of the expression $169\sin\!\left(2\cos^{-1}\!\left(-\dfrac{5}{13}\right)\right)$?
\begin{tabular}{p{6cm} p{6cm}}
(2) $60$ & (1) $-120$ \\[6pt]
(4) $120$ & (3) $-60$
\end{tabular}
\medskip