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1.7.1 Binomial expansion

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Question 84

Expand $1+2x3\sqrt[3]{1 + 2x}$ in ascending powers of $x\,$ up to and including the term in $x^3$ , and state, using set notation, the values of $x\,$ for which the expansion is valid.

[5]

Use your expansion to find an approximation for $1.13\sqrt[3]{1.1}$ to five decimal places.

[2]

Markscheme

1.7.1 Binomial expansion Questions

A Level
Maths
1.7.1 Binomial expansion

144 exam-style questions on AQA A Level Maths 1.7.1 Binomial expansion. Each one has a worked solution and a mark scheme showing where the marks go.

1.7.1 Binomial expansion

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1.7.1 Binomial expansion

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Question 84

Expand $1+2x3\sqrt[3]{1 + 2x}$ in ascending powers of $x\,$ up to and including the term in $x^3$ , and state, using set notation, the values of $x\,$ for which the expansion is valid.

[5]

Use your expansion to find an approximation for $1.13\sqrt[3]{1.1}$ to five decimal places.

[2]

Markscheme

1.7.1 Binomial expansion Questions

A Level
Maths
1.7.1 Binomial expansion

144 exam-style questions on AQA A Level Maths 1.7.1 Binomial expansion. Each one has a worked solution and a mark scheme showing where the marks go.