OCR MEI Paper 1 2022 June — Question 4

Exam BoardOCR MEI
ModulePaper 1 (Paper 1)
Year2022
SessionJune
TopicGeneralised Binomial Theorem
TypeApproximation for small x

4 Using an appropriate expansion show that, for sufficiently small values of \(x\), \(\frac { 1 - x } { ( 2 + x ) ^ { 2 } } \approx \frac { 1 } { 4 } - \frac { 1 } { 2 } x + \frac { 7 } { 16 } x ^ { 2 }\).