### Home > CCA2 > Chapter 10 > Lesson 10.1.4 > Problem 10-62

10-62.

Write each series in sigma notation and find the sum or an expression for the sum. Homework Help ✎

47 + 34 + 21 + … + (−83)

3 + 10 + 17 + … + (3 + 7(

*n*− 1))

What is the expression for the sequence?

How many terms are there in the series?

One possible answer:

Instead of going up to a specific term, this series sums up the first *n* terms of the sequence given in parentheses.