Differential Equations and Linear Algebra (4th Edition)

4th Edition

ISBN: 9780321964670

Author: Stephen W. Goode, Scott A. Annin

Publisher: PEARSON

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Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.

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The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

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Textbook Question

Chapter 1.4, Problem 25P

A flammable substance whose initial temperature is 50 ° F is inadvertently placed in a hot oven whose temperature is 450 ° F . After 20 minutes, the substance’s temperature is 150 ° F . Find the temperature of the substance after 40 minutes. Assuming that the substance ignites when its temperature reaches 350 ° F , find the time of combustion.

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Chapter 1.4, Problem 23P

Chapter 1.4, Problem 26P

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Chapter 1 Solutions

Differential Equations and Linear Algebra (4th Edition)

Ch. 1.1 - True-False review For items a-n, decide if the...Ch. 1.1 - For Problems 14 determine the order of the...Ch. 1.1 - For Problems 14 determine the order of the...Ch. 1.1 - For Problems 1-4 determine the order of the...Ch. 1.1 - For Problems 14 determine the order of the...Ch. 1.1 - Verify that, for t0, y(t)=lnt is a solution to the...Ch. 1.1 - Verify that y(x)=x/(x+1) is a solution to the...Ch. 1.1 - Verify that y(x)=exsinx is a solution to the...Ch. 1.1 - By writing Equation 1.1.7 in the form 1TTmdTdt=k...Ch. 1.1 - A glass of water whose temperature is 50F is taken...

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Chapter 1 Solutions