Edexcel P1 2021 June — Question 6

Exam BoardEdexcel
ModuleP1 (Pure Mathematics 1)
Year2021
SessionJune
TopicChain Rule

6. The curve \(C\) has equation \(y = \mathrm { f } ( x ) , x > 0\) Given that
  • \(C\) passes through the point \(P ( 8,2 )\)
  • \(\mathrm { f } ^ { \prime } ( x ) = \frac { 32 } { 3 x ^ { 2 } } + 3 - 2 ( \sqrt [ 3 ] { x } )\)
    1. find the equation of the tangent to \(C\) at \(P\). Write your answer in the form \(y = m x + c\), where \(m\) and \(c\) are constants to be found.
      (3)
    2. Find, in simplest form, \(\mathrm { f } ( x )\).
      \includegraphics[max width=\textwidth, alt={}, center]{877d03f2-d62c-4060-bdd2-f0d5dfbe6203-21_2647_1840_118_111}