What if you want to find the SUM of a list of numbers? Rather than bang them out on a calculator, we elegantly discover how to find the sum of any arithmetic sequence, called an arithmetic series, or sum. The class alarms me with their spontaneous cries of "Yay Math!" at random times. Enjoy the moment, YAY MATH!

Please visit yaymath.org

Videos copyright (c) Yay Math

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