OCR C3 — Question 5

Exam BoardOCR
ModuleC3 (Core Mathematics 3)
TopicVolumes of Revolution

5.
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The diagram shows the curve with equation \(y = \frac { 1 } { \sqrt { 3 x + 1 } }\).
The shaded region is bounded by the curve, the \(x\)-axis and the lines \(x = 1\) and \(x = 5\).
  1. Find the area of the shaded region. The shaded region is rotated through four right angles about the \(x\)-axis.
  2. Find the volume of the solid formed, giving your answer in the form \(k \pi \ln 2\).