OCR MEI C4 2007 January — Question 5

Exam BoardOCR MEI
ModuleC4 (Core Mathematics 4)
Year2007
SessionJanuary
TopicGeneralised Binomial Theorem
TypeExpand and state validity

5 Find the first four terms in the binomial expansion of \(( 1 + 3 x ) ^ { \frac { 1 } { 3 } }\).
State the range of values of \(x\) for which the expansion is valid.