5. Prove that the improper integral f√xe da converges. -I

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Chapter3: Functions
Section3.3: More On Functions; Piecewise-defined Functions
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4. Let f, g [a, b] → R be bounded. Prove that the lower Darboux integral of
f + g satisfies
[*[f(x) + 9(z) de > [f(2) dz + [*9(x) dz.
g(x)] dx
5. Prove that the improper integral f√xe da converges.
Transcribed Image Text:4. Let f, g [a, b] → R be bounded. Prove that the lower Darboux integral of f + g satisfies [*[f(x) + 9(z) de > [f(2) dz + [*9(x) dz. g(x)] dx 5. Prove that the improper integral f√xe da converges.
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