Edexcel FP2 2018 June — Question 7

Exam BoardEdexcel
ModuleFP2 (Further Pure Mathematics 2)
Year2018
SessionJune
TopicPolar coordinates

7. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{5aa7f449-215b-4a21-9fdc-df55d26abc9d-24_508_896_212_525} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} The curve \(C\) shown in Figure 1 has polar equation $$r = 2 + \sqrt { 3 } \cos \theta , \quad 0 \leqslant \theta < 2 \pi$$ The tangent to \(C\) at the point \(P\) is parallel to the initial line.
  1. Show that \(O P = \frac { 1 } { 2 } ( 3 + \sqrt { 7 } )\)
  2. Find the exact area enclosed by the curve \(C\).