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3.4.1 Sequences and Series (A-level only)

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Question 18
a.

Expand (4−12x)−12\displaystyle (4-12x)^{-\frac{1}{2}}(4−12x)−21​ in ascending powers of x x\,x up to and including x3x^3x3.

[4]
b.

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

[1]
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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