OpenStax, Algebra and Trigonometry 2e §13.4 Series and Their Notations · Example 4 · Probability · Counting & chance

Finding the First n Terms of an Arithmetic Series

Find the sum of each arithmetic series.

ⓐ $5 + 8 + 11 + 14 + 17 + 20 + 23 + 26 + 29 + 32$
ⓑ $20 + 15 + 10 + \dots + - 50$
ⓒ $\sum_{k = 1}^{12} 3 k - 8$

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OpenStax, Algebra and Trigonometry 2e · §13.4 Series and Their Notations · Example 4

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