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3.4.1 Sequences and Series (A-level only)

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Question 33
a.

Find the first three terms, in ascending powers of xxx, of the binomial expansion of

14+x\displaystyle \frac{1}{\sqrt{4 + x}}4+x​1​

giving each coefficient in its simplest form.

[3]
b.

Hence find the first three terms, in ascending powers of xxx, of the binomial expansion of

14−x2\displaystyle \frac{1}{\sqrt{4 - x^2}}4−x2​1​

[2]
Markscheme

3.4.1 Sequences and Series (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.4.1 Sequences and Series (A-level only)

67 exam-style questions on WJEC A Level Maths 3.4.1 Sequences and Series (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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