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1.4.1 Binomial expansion for positive integer n

Question 4

Find the expansion of $(1+x4)8\left(1 + \dfrac{x}{4}\right)^8$ up to and including the term in $x^2$ , simplifying each coefficient.

[3]

By choosing a suitable value of $x$ , use your answer to part (a) to estimate the value of $1.025^8$ , giving your answer to 4 decimal places.

[2]

Markscheme

1.4.1 Binomial expansion for positive integer n Questions

A Level
Maths
1.4.1 Binomial expansion for positive integer n

108 exam-style questions on OCR A Level Maths 1.4.1 Binomial expansion for positive integer n. Each one has a worked solution and a mark scheme showing where the marks go.

1.4.1 Binomial expansion for positive integer n

Question bank

1.4.1 Binomial expansion for positive integer n

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Question 4

Find the expansion of $(1+x4)8\left(1 + \dfrac{x}{4}\right)^8$ up to and including the term in $x^2$ , simplifying each coefficient.

[3]

By choosing a suitable value of $x$ , use your answer to part (a) to estimate the value of $1.025^8$ , giving your answer to 4 decimal places.

[2]

Markscheme

1.4.1 Binomial expansion for positive integer n Questions

A Level
Maths
1.4.1 Binomial expansion for positive integer n

108 exam-style questions on OCR A Level Maths 1.4.1 Binomial expansion for positive integer n. Each one has a worked solution and a mark scheme showing where the marks go.