CAIE P1 2021 November — Question 10

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2021
SessionNovember
TopicIntegration by Substitution

10
  1. Find \(\int _ { 1 } ^ { \infty } \frac { 1 } { ( 3 x - 2 ) ^ { \frac { 3 } { 2 } } } \mathrm {~d} x\).
    \includegraphics[max width=\textwidth, alt={}, center]{af7aeda9-2ded-4db4-9ff3-ed6adc67859f-16_499_689_1322_726} The diagram shows the curve with equation \(y = \frac { 1 } { ( 3 x - 2 ) ^ { \frac { 3 } { 2 } } }\). The shaded region is bounded by the curve, the \(x\)-axis and the lines \(x = 1\) and \(x = 2\). The shaded region is rotated through \(360 ^ { \circ }\) about the \(x\)-axis.
  2. Find the volume of revolution.
    The normal to the curve at the point \(( 1,1 )\) crosses the \(y\)-axis at the point \(A\).
  3. Find the \(y\)-coordinate of \(A\).
    If you use the following lined page to complete the answer(s) to any question(s), the question number(s) must be clearly shown.