3.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{6a5d0ffc-a725-404b-842a-f3b6000e6fed-08_625_835_264_557}
\captionsetup{labelformat=empty}
\caption{Figure 1}
\end{figure}
Figure 1 shows a sketch of part of the curve \(C _ { 1 }\) with equation \(y = 4 \cos x ^ { \circ }\) The point \(P\) and the point \(Q\) lie on \(C _ { 1 }\) and are shown in Figure 1.
- State
- the coordinates of \(P\),
- the coordinates of \(Q\).
The curve \(C _ { 2 }\) has equation \(y = 4 \cos x ^ { \circ } + k\), where \(k\) is a constant.
Curve \(C _ { 2 }\) has a minimum \(y\) value of - 1
The point \(R\) is the maximum point on \(C _ { 2 }\) with the smallest positive \(x\) coordinate.
- State the coordinates of \(R\).