Arithmetic and Geometric Sequences and Series Quiz for Class 11
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Questions and Answers

What is the sum of the first 10 terms of the geometric series 3, 6, 12, ...?

  • 885
  • 1023 (correct)
  • 5461
  • 4096

    • What is the formula for the nth term of an arithmetic sequence?

  • aₙ = a₁ * r^(n-1)
  • aₙ = a₁ * r^n
  • aₙ = a₁ + (n + 1)d
  • aₙ = a₁ + (n - 1)d (correct)

    • In an arithmetic sequence, if a₁ = 3 and d = 4, what is the 7th term?

  • 31
  • 27
  • 30 (correct)
  • 29

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