Edexcel C4 2016 June — Question 2

Exam BoardEdexcel
ModuleC4 (Core Mathematics 4)
Year2016
SessionJune
TopicArea Under & Between Curves

2. \begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{cbfbb690-bc85-46e5-a97f-35df4b6f1c84-03_712_1091_248_470} \captionsetup{labelformat=empty} \caption{Figure 1}
\end{figure} Figure 1 shows a sketch of part of the curve with equation \(y = x ^ { 2 } \ln x , x \geqslant 1\)
The finite region \(R\), shown shaded in Figure 1, is bounded by the curve, the \(x\)-axis and the line \(x = 2\) The table below shows corresponding values of \(x\) and \(y\) for \(y = x ^ { 2 } \ln x\)
\(x\)11.21.41.61.82
\(y\)00.26251.20321.90442.7726
  1. Complete the table above, giving the missing value of \(y\) to 4 decimal places.
  2. Use the trapezium rule with all the values of \(y\) in the completed table to obtain an estimate for the area of \(R\), giving your answer to 3 decimal places.
  3. Use integration to find the exact value for the area of \(R\).