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What is the sum of the first 5 terms of a GP where the first term is 2 and the common ratio is 3?

Practice Questions

1 question
Q1
What is the sum of the first 5 terms of a GP where the first term is 2 and the common ratio is 3?
  1. 242
  2. 364
  3. 486
  4. 728

Questions & Step-by-step Solutions

1 item
Q
Q: What is the sum of the first 5 terms of a GP where the first term is 2 and the common ratio is 3?
Solution: The sum of the first n terms of a GP is given by S_n = a(1 - r^n) / (1 - r). Here, S_5 = 2(1 - 3^5) / (1 - 3) = 2(1 - 243) / (-2) = 242.
Steps: 0

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