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CalculusCalculus: Early Transcendentals(a) Write the general form of a second-order homogeneous linear differential equation with constant coefficients. (b) Write the auxiliary equation. (c) How do you use the roots of the auxiliary equation to solve the differential equation? Write the form of the solution for each of the three cases that can occur.BuyFind*arrow_forward*

8th Edition

James Stewart

Publisher: Cengage Learning

ISBN: 9781285741550

Chapter 17, Problem 1RCC

Textbook Problem

(a) Write the general form of a second-order homogeneous linear differential equation with constant coefficients.

(b) Write the auxiliary equation.

(c) How do you use the roots of the auxiliary equation to solve the differential equation? Write the form of the solution for each of the three cases that can occur.

Expert Solution

(a)

To determine

**To write:** The general form of a second-order homogeneous linear differential equation with constant coefficients.

The general form of a second-order homogeneous linear differential equation with constant coefficients is

**Formula used:**

Consider the second-order linear differential equation as follows.

Here,

If

Consider the value of

Substitute

Consider

Substitute

Thus, the general form of a second-order homogeneous linear differential equation with constant coefficients is

Expert Solution

(b)

To determine

**To write**: The auxiliary equation.

The auxiliary equation of the second-order differential equation is

Modify equation (3) as follows.

In equation (4), function

Consider a exponential function for

Differentiate

Differentiate

Substitute

Since, the value of

Equation (6) is known as characteristic equation or auxiliary equation of the second-order differential equation

Thus, the auxiliary equation of the second-order differential equation is

Expert Solution

(c)

To determine

**To explain:** The use of roots of the auxiliary equation to solve the differential equation and write the form of the solution for each of the three cases.

The use of roots of the auxiliary equation to solve the differential equation is explained.

The form of the solution for each of the three cases is written.

**Formula used:**

Consider the second-order differential equation as follows.

Write the expression for quadratic formula.

Modify equation (7) as follows.

Modify equation (8) as follows.

Thus, the use of roots of the auxiliary equation to solve the differential equation is explained.

Three different cases are obtained depending upon the term

**Case I:**

Consider the value of

In this case, the roots of auxiliary equation are real and distinct. So two linear independent solutions are occurs such as

Write the expression for general solution.

Here,

Substitute

**Case II:**

Consider the value of

In this case, the roots of auxiliary equation are real and equal.

Consider

Substitute

**Case III:**

Consider the value of

In this case, the roots of auxiliary equation are complex numbers.

Consider

Write the expression for general solution with complex roots.

Thus, the form of the solution for each of the three cases is written.

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Ch. 17.1 - Solve the differential equation. 1. y" y' 6y = 0Ch. 17.1 - Solve the differential equation. 2. y" 6y' + 9y =...Ch. 17.1 - Solve the differential equation. 3. y" + 2y = 0Ch. 17.1 - Solve the differential equation. 4. y" + y' 12y =...Ch. 17.1 - Solve the differential equation. 5. 4y" + 4y' + y...Ch. 17.1 - Solve the differential equation. 6. 9y" + 4y = 0Ch. 17.1 - Solve the differential equation. 7. 3y" = 4y'Ch. 17.1 - Solve the differential equation. 8. y = y"Ch. 17.1 - Solve the differential equation. 9. y" 4y' + 13y...Ch. 17.1 - Solve the differential equation. 10. 3y" + 4y' 3y...

Ch. 17.1 - Solve the differential equation. 11....Ch. 17.1 - Solve the differential equation. 12....Ch. 17.1 - Solve the differential equation. 13....Ch. 17.1 - Graph the two basic solutions along with several...Ch. 17.1 - Graph the two basic solutions along with several...Ch. 17.1 - Graph the two basic solutions along with several...Ch. 17.1 - Solve the initial-value problem. 17. y" + 3y = 0,...Ch. 17.1 - Solve the initial-value problem. 18. y" - 2y' 3y...Ch. 17.1 - Solve the initial-value problem. 19. 9y" + 12y' +...Ch. 17.1 - Solve the initial-value problem. 20. 3y" 2y' y =...Ch. 17.1 - Solve the initial-value problem. 21. y" 6y' + 10y...Ch. 17.1 - Solve the initial-value problem. 22. 4y" 20y' +...Ch. 17.1 - Solve the initial-value problem. 23. y" y' 12y =...Ch. 17.1 - Solve the initial-value problem. 24. 4y" + 4y' +...Ch. 17.1 - Solve the boundary-value problem, if possible. 25....Ch. 17.1 - Solve the boundary-value problem, if possible. 26....Ch. 17.1 - Solve the boundary-value problem, if possible. 27....Ch. 17.1 - Solve the boundary-value problem, if possible. 28....Ch. 17.1 - Solve the boundary-value problem, if possible. 29....Ch. 17.1 - Solve the boundary-value problem, if possible. 30....Ch. 17.1 - Solve the boundary-value problem, if possible. 31....Ch. 17.1 - Solve the boundary-value problem, if possible. 32....Ch. 17.1 - Let L be a nonzero real number. (a) Show that the...Ch. 17.1 - If a, b, and c are all positive constants and y(x)...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Solve the differential equation or initial-value...Ch. 17.2 - Graph the particular solution and several other...Ch. 17.2 - Graph the particular solution and several other...Ch. 17.2 - Write a trial solution for the method of...Ch. 17.2 - Write a trial solution for the method of...Ch. 17.2 - Write a trial solution for the method of...Ch. 17.2 - Write a trial solution for the method of...Ch. 17.2 - Write a trial solution for the method of...Ch. 17.2 - Write a trial solution for the method of...Ch. 17.2 - Solve the differential equation using (a)...Ch. 17.2 - Solve the differential equation using (a)...Ch. 17.2 - Solve the differential equation using (a)...Ch. 17.2 - Solve the differential equation using (a)...Ch. 17.2 - Solve the differential equation using the method...Ch. 17.2 - Solve the differential equation using the method...Ch. 17.2 - Solve the differential equation using the method...Ch. 17.2 - Solve the differential equation using the method...Ch. 17.2 - Solve the differential equation using the method...Ch. 17.2 - Solve the differential equation using the method...Ch. 17.3 - A spring has natural length 0.75 m and a 5-kg...Ch. 17.3 - A spring with an 8-kg mass is kept stretched 0.4 m...Ch. 17.3 - A spring with a mass of 2 kg has damping constant...Ch. 17.3 - A force of 13 N is needed to keep a spring with a...Ch. 17.3 - For the spring in Exercise 3, find the mass that...Ch. 17.3 - For the spring in Exercise 4, find the damping...Ch. 17.3 - A spring has a mass of 1 kg and its spring...Ch. 17.3 - A spring has a mass of 1 kg and its damping...Ch. 17.3 - Suppose a spring has mass m and spring constant k...Ch. 17.3 - As in Exercise 9, consider a spring with mass m,...Ch. 17.3 - Show that if 0 , but /0 is a rational number,...Ch. 17.3 - Consider a spring subject to a frictional or...Ch. 17.3 - A series circuit consists of a resistor with R =...Ch. 17.3 - A series circuit contains a resistor with R = 24 ,...Ch. 17.3 - The battery in Exercise 13 is replaced by a...Ch. 17.3 - The battery in Exercise 14 is replaced by a...Ch. 17.3 - Verify that the solution to Equation I can be...Ch. 17.3 - The figure shows a pendulum with length I, and the...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - 1-11 Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - Use power series to solve the differential...Ch. 17.4 - The solution of the initial-value problem x2y" +...Ch. 17 - (a) Write the general form of a second-order...Ch. 17 - (a) What is an initial-value problem for a...Ch. 17 - (a) Write the general form of a second-order...Ch. 17 - Discuss two applications of second-order linear...Ch. 17 - How do you use power series to solve a...Ch. 17 - Determine whether the statement is true or false....Ch. 17 - Determine whether the statement is true or false....Ch. 17 - Determine whether the statement is true or false....Ch. 17 - Determine whether the statement is true or false....Ch. 17 - Solve the differential equation. 1. 4y" y =0Ch. 17 - Solve the differential equation. 2. 2y" 2y' + 10y...Ch. 17 - Solve the differential equation. 3. y" + 3y =0Ch. 17 - Solve the differential equation. 4. y" + 8y' + 16y...Ch. 17 - Solve the differential equation. 5....Ch. 17 - Solve the differential equation. 6....Ch. 17 - Solve the differential equation. 7....Ch. 17 - Solve the differential equation. 8....Ch. 17 - Solve the differential equation. 9....Ch. 17 - Solve the differential equation. 10....Ch. 17 - Solve the initial-value problem. 11. y" + 6y' = 0,...Ch. 17 - Solve the initial-value problem. 12. y" 6y' + 25y...Ch. 17 - Solve the initial-value problem. 13. y" 5y' + 4y...Ch. 17 - Solve the initial-value problem. 14. 9y" + y =3x +...Ch. 17 - Solve the boundary-value problem, if possible. 15....Ch. 17 - Solve the boundary-value problem, if possible. 16....Ch. 17 - Use power series to solve the initial-value...Ch. 17 - Use power series to solve differential equation y"...Ch. 17 - A series circuit contains a resistor with R = 40 ,...Ch. 17 - A spring with a mass of 2 kg has damping constant...Ch. 17 - Assume that the earth is a solid sphere of uniform...

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