CAIE P3 2005 June — Question 9

Exam BoardCAIE
ModuleP3 (Pure Mathematics 3)
Year2005
SessionJune
TopicIntegration by Substitution

9
\includegraphics[max width=\textwidth, alt={}, center]{208eab3e-a78c-43b4-918f-a9efc9b4f47a-4_429_748_264_699} The diagram shows part of the curve \(y = \frac { x } { x ^ { 2 } + 1 }\) and its maximum point \(M\). The shaded region \(R\) is bounded by the curve and by the lines \(y = 0\) and \(x = p\).
  1. Calculate the \(x\)-coordinate of \(M\).
  2. Find the area of \(R\) in terms of \(p\).
  3. Hence calculate the value of \(p\) for which the area of \(R\) is 1 , giving your answer correct to 3 significant figures.