OCR C1 2008 January — Question 10

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
Year2008
SessionJanuary
TopicQuadratic Functions
10 Given that \(\mathrm { f } ( x ) = 8 x ^ { 3 } + \frac { 1 } { x ^ { 3 } }\),
  1. find \(\mathrm { f } ^ { \prime \prime } ( x )\),
  2. solve the equation \(\mathrm { f } ( x ) = - 9\).
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