Define a function f(x) by the rule if x is rational and f (x) = if x is not rational. Prove that f is not integrable on the interval [5, 1]. (In fact, ƒ is not integrable on any closed interval; prove that if you prefer.)

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter8: Polynomials
Section8.3: Factorization In F [x]
Problem 18E: Prove that a polynomial f(x) of positive degree n over the field F has at most n (not necessarily...
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real analysis

Define a function f(x) by the rule
(x if x is rational and
f(x) =
if
x is not rational.
Prove that f is not integrable on the interval ,1]. (In fact, f is not integrable on any closed interval; prove that if
you prefer.)
Transcribed Image Text:Define a function f(x) by the rule (x if x is rational and f(x) = if x is not rational. Prove that f is not integrable on the interval ,1]. (In fact, f is not integrable on any closed interval; prove that if you prefer.)
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Given a function

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Let us start with partitioning the given interval.

Algebra homework question answer, step 2, image 1

Algebra homework question answer, step 2, image 2

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