CPM Homework Help : CALC Problem 9-99

For an infinite geometric series:

Hint (a):

This is a geometric series with r = 1.

Hint (b):

This is a geometric series with r = 1/10.

Hint (c):

This is an arithmetic series. Does an infinite arithmetic series have a finite sum?

Hint (d):

This is a geometric series with r = –3/5.