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Home > PC > Chapter 8 > Lesson 8.2.4 > Problem 8-123

8-123.
  1. Find the sum of the following infinite geometric series. If the answer is “∞,” explain why. Homework Help ✎

    1. a + 0.9a + 0.81a + 0.729a + …

    2. 1 + 1.1 + 1.21 + 1.331 + …

The sum would be ∞ because r > 1.