# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2009 | Oct-Nov | (P1-9709/12) | Q#2

Hits: 42 Question i. Find, in terms of the non-zero constant , the first four terms in the expansion of in ascending powers of . ii. Given that the coefficients of and in this expansion are equal, find the value of . Solution i. Expression for the Binomial expansion of is: In the given case: Hence; ii. […]