DQ 4 College Algebra

Algebra
Tutor: None Selected Time limit: 1 Day

  • Suppose you are provided with an arithmetic sequence. How can you find the sum of n terms of the sequence without having to add all of the terms?
Jul 2nd, 2015

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Suppose a sequence of numbers is arithmetic (that is, it increases or decreases by a constant amount each term), and you want to find the sum of the first n terms.

Denote this partial sum by Sn. Then


where n is the number of terms, a1 is the first term and an is the last term.


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jul 2nd, 2015

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Jul 2nd, 2015
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