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Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Problem 19. Let a be a rational number with a + 0 and let b be an irrational number. Show that ab is an irrational number. Hint: A proof by contradiction may be the easiest way to do this problem.
Transcribed Image Text:Problem 19. Let a be a rational number with a + 0 and let b be an irrational number. Show that ab is an irrational number. Hint: A proof by contradiction may be the easiest way to do this problem.
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