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Series and Summation Notation - Problem 7

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Teacher/Instructor Alissa Fong
Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

Capital Greek letter Sigma is used to represent a sum of numbers. Next to the sigma is a formula with a variable to input: the lowest input is on the bottom of the sigma, and you substitute in every integer until you reach the highest input that is listed on top of the sigma. Here we do some basic sigma calculations by hand- in the future, you may wish to look for shortcut formulas for these types of sums.

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