Answer
10
Work Step by Step
$$S_n = \sum_{k=1}^{n} k$$
To find first four terms, we have to evaluate the summation when $n=4$
$$S_4 = \sum_{k=1}^{4} k = 1+2+3+4 = 10$$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 8 - Sequences and Infinite Series - 8.1 An Overview - 8.1 Exercises - Page 604: 6
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
