CAIE P2 2021 June — Question 6

Exam BoardCAIE
ModuleP2 (Pure Mathematics 2)
Year2021
SessionJune
TopicDifferentiating Transcendental Functions

6
\includegraphics[max width=\textwidth, alt={}, center]{388d7076-636c-417d-84cb-e6e2a3e9a6a0-08_451_1086_260_525} The diagram shows the curve with equation $$y = ( \ln x ) ^ { 2 } - 2 \ln x$$ The curve crosses the \(x\)-axis at the points \(A\) and \(B\), and has a minimum point \(M\).
  1. Find the exact value of the gradient of the curve at each of the points \(A\) and \(B\).
  2. Find the exact \(x\)-coordinate of \(M\).