Edexcel Mathematics June 2023 · Paper 2 · Question 13 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

June 2023 · Paper 2 · Question 13 · 13 marks

13. In this question you must show all stages of your working. Solutions relying entir ely on calculator technology are not acceptable. (a) Find the first three terms, in ascending powers of x, of the binomial expansion of (3 + x)–2 writing each term in simplest form. (4) (b) Using the answer to part (a) and using algebraic integration, estimate the value of

Lesson: Binomial Expansion for Positive Integer n