Differential Equations: An Introduction to Modern Methods and Applications

3rd Edition

ISBN: 9781118531778

Author: James R. Brannan, William E. Boyce

Publisher: WILEY

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Textbook Question

Chapter 2.P2, Problem 3P

Show that when r ≥ 1 , the source has an infinite lifetime, but if 0 < γ < 1 , the source has a finite lifetime. In the latter case, find the time that the DNAPL source mass attains the value zero.

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Chapter 2.P2, Problem 2P

Chapter 2.P2, Problem 4P

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3 2 20-10-18-17-16-15-14-13-12-11-10-9 -8 -7 -6 -$4-3-2-1 -1 -2 -3 4- -5+ The curve above is the graph of a sinusoidal function. It goes through the points (-8, -4) and (6,-4). Find a sinusoidal function that matches the given graph. If needed, you can enter π=3.1416... as 'pi' in your answer, otherwise use at least 3 decimal digits. f(x) = > Next Question B

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2 d) Draw the following graph on the interval k 5π Next Question

Chapter 2 Solutions

Differential Equations: An Introduction to Modern Methods and Applications

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Show that when r ≥ 1 , the source has an infinite lifetime, but if 0 &lt; γ &lt; 1 , the source has a finite lifetime. In the latter case, find the time that the DNAPL source mass attains the value zero.