Arithmetic and Geometric Sequences and Series
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Questions and Answers

What is the sum of the first 10 terms of the arithmetic sequence 3, 7, 11, ...?

  • 100
  • 90 (correct)
  • 80
  • 70
  • In a geometric sequence, if the first term is 5 and the common ratio is 2, what is the fifth term?

  • 160 (correct)
  • 40
  • 320
  • 80
  • What is the sum of the first 8 terms of the series defined by the sequence $3, 6, 12, 24, ...$?

  • 420
  • 408
  • 384
  • 396 (correct)
  • Which type of sequence has a common difference between terms?

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