Solved: Let f be a positive, continuous, and decreasing function for such that Prove
Chapter 9, Problem 67(choose chapter or problem)
Let f be a positive, continuous, and decreasing function for \(x \geq 1\) such that \(a_{n}=f(n)\). Prove that if the series
\(\sum_{n=1}^{\infty} a_{n}\)
converges to S, then the remainder \(R_{N}=S-S_{N}\) is bounded by
\(0\ \le\ R_N\ \le\ \int_N^{\infty}\ f(x)\ dx\)
Text Transcription:
x geq 1
a_n = f(n)
sum_n=1 ^infty a_n
R_N = S - S_N
0 leq R_N leq int_N ^infty f(x) dx
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