MATHguide's Arithmetic Series Sum Formula Quizmaster
Review the Lesson | MATHguide homepage Updated March 25th, 2013


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Use the first 28 terms of the following arithmetic series for the problem below:

-10 - 6 - 2 + 2 + ...


What is the 28th term?
a28 =
What is the sum of the first 28 terms? S28 =