CAIE P1 2017 March — Question 2

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2017
SessionMarch
TopicBinomial Theorem (positive integer n)
TypeSingle coefficient given directly
2 In the expansion of \(\left( \frac { 1 } { a x } + 2 a x ^ { 2 } \right) ^ { 5 }\), the coefficient of \(x\) is 5 . Find the value of the constant \(a\).
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