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Equilibrium solutions A differential equation of the form

Calculus: Early Transcendentals | 1st Edition | ISBN: 9780321570567 | Authors: William L. Briggs, Lyle Cochran, Bernard Gillett ISBN: 9780321570567 2

Solution for problem 47E Chapter 7.8

Calculus: Early Transcendentals | 1st Edition

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Calculus: Early Transcendentals | 1st Edition | ISBN: 9780321570567 | Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

Calculus: Early Transcendentals | 1st Edition

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Problem 47E

Equilibrium solutions A differential equation of the form \(y^{\prime}(t)=F(y)\) is said to be autonomous (the function F depends only on y). The constant function \(y=y_{0}\) is an equilibrium solution of the equation provided \(F\left(y_{0}\right)=0\) (because then \(y^{\prime}(t)=0\), and the solution remains constant for all t). Note that equilibrium solutions correspond to horizontal line segments in the direction field. Note also that for autonomous equations, the direction field is independent of t. Consider the following equations.

a. Find all equilibrium solutions.

b. Sketch the direction field on either side of the equilibrium solutions for \(t \geq 0\).

c. Sketch the solution curve that corresponds to the initial condition y(0) = 1.

\(y^{\prime}(t)=y(y-3)(y+2)\)

Step-by-Step Solution:

Problem 47E

Equilibrium solutions A differential equation of the form y′(t) = F(y) is said to be autonomous (the function F depends only on y). The constant function y = y0is an equilibrium solution of the equation provided  (because then y′(t)=0, and the solution remains constant for all t). Note that equilibrium solutions correspond to horizontal line segments in the direction field. Note also that for autonomous equations, the direction field is independent of t. Consider the following equations.

a. Find all equilibrium solutions.

b. Sketch the direction field on either side of the equilibrium solutions for t ≥ 0.

c. Sketch the solution curve that corresponds to the initial condition y(0) = 1.

y′(t) = y(y −3)(y + 2)

Solution

Step 1

In this problem we have to find all the equilibrium solutions of

a. Find all equilibrium solutions.

We get the equilibrium solution by setting

Thus are the equilibrium solutions.

Step 2 of 5

Chapter 7.8, Problem 47E is Solved
Step 3 of 5

Textbook: Calculus: Early Transcendentals
Edition: 1
Author: William L. Briggs, Lyle Cochran, Bernard Gillett
ISBN: 9780321570567

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Equilibrium solutions A differential equation of the form