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3.3 Sequences and series (A-level only)

3.3 Sequences and series (A-level only)

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Question 28

Each of the series below shows the first four terms of a geometric series.

For each series, state whether its sequence of partial sums is convergent, divergent to infinity, or oscillating.

A

3+6+12+24+…3 + 6 + 12 + 24 + \dots3+6+12+24+…

B

1−1+1−1+…1 - 1 + 1 - 1 + \dots1−1+1−1+…

C

81−27+9−3+…81 - 27 + 9 - 3 + \dots81−27+9−3+…

D

2+4+8+16+…2 + 4 + 8 + 16 + \dots2+4+8+16+…

Markscheme

3.3 Sequences and series (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.3 Sequences and series (A-level only)

200 exam-style questions on CCEA A Level Maths 3.3 Sequences and series (A-level only), covering 3.3.1 Sequences and series (A-level only), 3.3.2 Sequences and series (A-level only), 3.3.3 Sequences and series (A-level only), 3.3.4 Sequences and series (A-level only), 3.3.5 Sequences and series (A-level only), 3.3.6 Sequences and series (A-level only), 3.3.7 Sequences and series (A-level only), and 3.3.8 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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