CAIE P1 2016 November — Question 4

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2016
SessionNovember
TopicCurve Sketching
TypeDomain restrictions from monotonicity
4 The function f is such that \(\mathrm { f } ( x ) = x ^ { 3 } - 3 x ^ { 2 } - 9 x + 2\) for \(x > n\), where \(n\) is an integer. It is given that f is an increasing function. Find the least possible value of \(n\).
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