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4MA1/2H Jan 2019, Question 2: Linear Sequences and Common Difference

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2H (Higher) · Calculator · 2 marks

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The question, in short

Find the nth-term formula for the arithmetic sequence 7, 11, 15, 19, 23.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Solution · 2 marks

  1. 111 − 7 = 4
  2. 27 − 4 = 3
  3. 3nth term = 4n + 3

Answer4n + 3

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