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Questions and Answers
What is the sum of the first 10 terms of the geometric series 3, 6, 12, ...?
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?
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?
In an arithmetic sequence, if a₁ = 3 and d = 4, what is the 7th term?
- 31
- 27
- 30 (correct)
- 29
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