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1.3.1 Sequences and series

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Question 7

Expand $1+2x)^{-2}$ in ascending powers of $x\,$ up to and including $x^3$

[4]

Write down the range of values of $x\,$ for which the expansion is valid.

[1]

Use your expansion to find the expansion of $1−x(1+2x)2\displaystyle \frac{1-x}{(1+2x)^2}$ up to and including $x^3$

[3]

Markscheme

1.3.1 Sequences and series Questions

A Level
Maths
1.3.1 Sequences and series

99 exam-style questions on CCEA A Level Maths 1.3.1 Sequences and series. Each one has a worked solution and a mark scheme showing where the marks go.

1.3.1 Sequences and series

Question bank

1.3.1 Sequences and series

Easy Medium

Question 7

Expand $1+2x)^{-2}$ in ascending powers of $x\,$ up to and including $x^3$

[4]

Write down the range of values of $x\,$ for which the expansion is valid.

[1]

Use your expansion to find the expansion of $1−x(1+2x)2\displaystyle \frac{1-x}{(1+2x)^2}$ up to and including $x^3$

[3]

Markscheme

1.3.1 Sequences and series Questions

A Level
Maths
1.3.1 Sequences and series

99 exam-style questions on CCEA A Level Maths 1.3.1 Sequences and series. Each one has a worked solution and a mark scheme showing where the marks go.