Edexcel C4 2008 June — Question 1

Exam BoardEdexcel
ModuleC4 (Core Mathematics 4)
Year2008
SessionJune
TopicArea Under & Between Curves

1. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{fb1924cc-9fa3-4fde-ba4d-6fb095f7f70b-02_519_451_210_749} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} Figure 1 shows part of the curve with equation \(y = \mathrm { e } ^ { 0.5 x ^ { 2 } }\). The finite region \(R\), shown shaded in Figure 1, is bounded by the curve, the \(x\)-axis, the \(y\)-axis and the line \(x = 2\).
  1. Complete the table with the values of \(y\) corresponding to \(x = 0.8\) and \(x = 1.6\).
    \(x\)00.40.81.21.62
    \(y\)\(\mathrm { e } ^ { 0 }\)\(\mathrm { e } ^ { 0.08 }\)\(\mathrm { e } ^ { 0.72 }\)\(\mathrm { e } ^ { 2 }\)
  2. Use the trapezium rule with all the values in the table to find an approximate value for the area of \(R\), giving your answer to 4 significant figures.