Let f(x) = 1/n for x = m/n with (m, n) = 1, and f(x) = 0 for irrational x. For irrational u € (0, 1) let F(x) = 0 if x < u and F(x) = 1 if r2u. Show that f is F-integrable on [0, 1].

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter6: Applications Of The Derivative
Section6.4: Related Rates
Problem 1E: Assume x and y are functions of t. Evaluate dydtfor each of the following. y28x3=55; dxdt=4,x=2,y=3
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3. Let f(x) = 1/n for x = m/n with (m, n) = 1, and f(x) = 0 for irrational x. For irrational
u € (0, 1) let Fu(x) = 0 if x < u and F(x) = 1 if x ≥ u. Show that f is F-integrable on
[0, 1].
Transcribed Image Text:3. Let f(x) = 1/n for x = m/n with (m, n) = 1, and f(x) = 0 for irrational x. For irrational u € (0, 1) let Fu(x) = 0 if x < u and F(x) = 1 if x ≥ u. Show that f is F-integrable on [0, 1].
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