# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2015 | Oct-Nov | (P1-9709/13) | Q#2

Hits: 77 Question Find the coefficient of x in the expansion of . Solution We are given expression as; Expression for the general term in the Binomial expansion of is: In the given case: Hence; Since we are looking for the terms with i.e. : we can equate; Now we can find the term with; Substituting ; Hence the coefficient of the term […]