# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2014 | Oct-Nov | (P1-9709/13) | Q#1

Question In the expansion of , the coefficient of is equal to the coefficient of . Find the value of the non-zero constant . Solution Expression for the general term in the Binomial expansion of is: In the given case: Hence; Since we are looking for the terms with : we can equate Now we can find the term with; Substituting ; Substituting ; […]