Chapter 1.5, Problem 1E

To explain how to view "Infinite Series" from "Infinite Sequence"’s perspective, refer to 12.2.1

Explain the key points and reasons for the establishment of 12.2.5 and 12.2.6

8. For x>_1, the continuous function g is decreasing and positive. A portion of the graph of g is shown above. For n>_1, the nth term of the series summation from n=1 to infinity a_n is defined by a_n=g(n). If intergral 1 to infinity g(x)dx converges to 8, which of the following could be true? A) summation n=1 to infinity a_n = 6. B) summation n=1 to infinity a_n =8. C) summation n=1 to infinity a_n = 10. D) summation n=1 to infinity a_n diverges.