OCR MEI Paper 3 Specimen — Question 2

Exam BoardOCR MEI
ModulePaper 3 (Paper 3)
SessionSpecimen
TopicGeneralised Binomial Theorem
TypeExpand and state validity

2 Find the first four terms of the binomial expansion of \(( 1 - 2 x ) ^ { \frac { 1 } { 2 } }\). State the set of values of \(x\) for which the expansion is valid.