5. (a) The diagram shows the graph of \(y = a \sec ( b x ) + 1\) for \(x \in [ 0 , \pi )\). Find the values of \(a\) and \(b\).
\includegraphics[max width=\textwidth, alt={}, center]{ace492d8-1dd0-401e-af74-505ca19d5e9c-12_818_556_201_897}
(b) The diagram shows the graph of \(y = \arccos ( x + c )\).
\includegraphics[max width=\textwidth, alt={}, center]{ace492d8-1dd0-401e-af74-505ca19d5e9c-12_511_766_1667_790}
- State the value of c .
- State the coordinates of the point \(P\).
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