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

Status: Waiting for your answers.

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 =