### Home > CALC > Chapter 10 > Lesson 10.1.2 > Problem 10-9

10-9.

For each of the following series, decide if there is a finite sum. Then predict the sum. If there is not a finite sum, explain why.

For an infinite geometric series:

But

must be _____.The series in part (a) is arithmetic.

The other series are geometric. What is the value ofin each case?