AQA FP3 2012 January — Question 2

Exam BoardAQA
ModuleFP3 (Further Pure Mathematics 3)
Year2012
SessionJanuary
TopicGeneralised Binomial Theorem
TypeApproximation for small x

2 Find $$\lim _ { x \rightarrow 0 } \left[ \frac { \sqrt { 4 + x } - 2 } { x + x ^ { 2 } } \right]$$ (3 marks)