1,272 Answered Questions for the topic differential equations

Differential Equations

09/01/20

Johnny had 24 cookies. He gave Tony 6 cookies. Then, Johnny sorted his remaining cookies into 3 equal bags. Which expression represents the number of cookies in each bag?
what is the anwser to the question
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Differential Equations Calculus

08/26/20

Differential equation
Is the Different equation is an exact differential equation? İf it is not exact, what should be the real numbers “a and b” for this equation to have an integral factor of ? In this case, find the... more
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Differential Equations Math

08/26/20

solve: -13/4k - 8/3k = 7/3( -3/2k + 7/3) + 9/4(-3/2k + 3/2)
I already tried timing everything by 12, but I keep getting the wrong answer based off of my calculator. Can someone explain the steps so I can understand better?THank you!
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Differential Equations Math Calculus Linear Algebra

08/20/20

Jacobian matrix of a nonlinear system
 is a Jacobian matrix of a nonlinear system   with a list of critical points.From below choices, select all critical points  that are classified as stable using the above Jacobian matrix.A.) B.)... more
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Differential Equations Math Calculus Linear Algebra

08/20/20

Can you please help with eigenvalues of matrix?
From below choices, select all correct approaches for finding the eigenvalues of matrixA.) First form a new matrix ,  compute its determinant and then find the roots of the polynomial equation: The... more
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Differential Equations Math Calculus Linear Algebra

08/20/20

Linear systems that have infinite many solutions.
From below choices, select all linear systems that have  many solutions.A.)B.) C.) D.) E.) F.)
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Differential Equations Math Calculus Linear Algebra

08/20/20

Please help with this question!
Solve the following linear, homogeneous system of ODEs:    the 3 eigenvalues of the coefficient matrix are: 
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Differential Equations Math Calculus Linear Algebra

08/19/20

Please help me with this question!
Use the Laplace Method to solve the following IVP:                                    Compute     and its Inverse Laplace Transform 
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Differential Equations Math Calculus Linear Algebra

08/19/20

Someone Please help me. Please
A super large tank was initially filled with brine solution of 20 liters.  At some point, fresh water starts to flow in at a rate of 8 liters per minute, and the well mixed solution flows out at... more
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Differential Equations Math Calculus Linear Algebra

08/19/20

select all 2nd order, linear, non-homogeneous ODEs with constant coefficients

From below choices, select all 2nd order, linear, non-homogeneous ODEs with constant coefficients whose correct form of a particular solution is:A.) B.) C.) D.)
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Differential Equations Math Calculus Linear Algebra

08/19/20

Please help!!!!
From below choices, select the correct general solution for the following Separable ODE:A.) ,   is an arbitrary constant.B.),    is an arbitrary constant.C.),     is an arbitrary  constant.D.),  C... more
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Differential Equations Math Calculus Linear Algebra

08/19/20

Please help with 1st-order equations

From below choices, select all 1st-order equations that can be classified as an Exact ODE.A.)B.)C.) D.)
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Differential Equations Math Calculus Linear Algebra

08/19/20

Please help me with this question!
Select all 1st-order ODE(s) from below choices that are classified as a Homogeneous ODE. A.)B.)C.)D.)
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Differential Equations Inequalities

08/14/20

Write the equation of the line that contains the indicated pair of points. Express the final equation in standard form. (2, 1), (5, 4)
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Differential Equations Math Calculus Linear Algebra

08/12/20

How do I find the the 3 eigenvalues of the following matrix ?
The 3 eigenvalues of the following matrix are the same.  Find the eigenvalues and determine the values for  and . Find the eigenvectors of the eigenvalues. Please show all steps.
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Differential Equations Math Calculus Linear Algebra

08/12/20

Solve the following 1st order linear homogeneous ODEs
Solve the following 1st order linear homogeneous ODEs:    The  eigenvalues of the coefficient matrix are:     
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Differential Equations Math Calculus Linear Algebra

08/12/20

Find all  critical point(s) of the following system
Find all  critical point(s) of the following system: Here    are constants.   Find the general expression of its Jacobian matrix and simplify its each entry as much as possible. Determine a pair of... more
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Differential Equations Math Calculus Linear Algebra

08/12/20

Please help me with this question
  is a square matrix. Select all statement(s) from below choices that are NOT correct.a.) If  then has only one solution for any b.) If  is an eigenvalue of  then we can always find two different... more
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Differential Equations Bernoulli

08/10/20

Solving this differential equation IVP
I'm not sure how to approach this problem. Please help with this.dy/dx +y = xy^2 - 1/x^2The 1/x^2 is really throwing me off.
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Differential Equations Math Proofs Analysis

08/10/20

Show that the solutions of the differential equation dy /dx = f (y) are monotonic functions.
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Differential Equations Math Physics

08/10/20

A forensic doctor, on a cool morning (15 ° C), arrives at the scene of a accident and sees that the temperature of a corpse is 25◦C. Establish the approximate time of the victim's death.

Suggestion;make the assumptions you consider necessary but justify them
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Differential Equations Math Physics

08/10/20

In a room a cup of coffee takes 10 minutes to cool down from 60 ° C to 40 ° C. If a person is given you a cup of coffee at 70°C and wants to start drinking when it is 30° C. How minutes should wait?
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Differential Equations Math Calculus Linear Algebra

08/10/20

Someone please help with this question!
Use the method of Power Series to solve the following nonlinear ODE:Please only use Power series method.
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Differential Equations

08/07/20

Find the particular solution of the differential equation that satisfies the initial condition(s).
(a) f' (x) = 5x2, f (2) = 7(b) f'' (x) = 4, f'(-1) = 4, f (-1) = -6(c) f'' (x) = cos x, f ' (π) = 3, f (π) = -1(d) f'' (x) = ex, f '(0) = -3, f (0) = 6
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Differential Equations Math Calculus Linear Algebra

08/07/20

Please help with this question!
Use the method of Power Series to solve the following nonlinear ODE:Please only use Power series method.
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