OpenStax, Algebra and Trigonometry 2e §13.4 Series and Their Notations · Exercise 25 · Probability · Counting & chance

Series and Their Notations · Exercise 25

Use the formula for the sum of the first $n$ terms of each geometric sequence, and then state the indicated sum.

$\sum_{n = 1}^{9} 5 \cdot 2^{n - 1}$

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OpenStax, Algebra and Trigonometry 2e · §13.4 Series and Their Notations · Exercise 25

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