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-EquinoX-
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Homework Statement
How can I find a general solution to this problem:
5y" + 9y' - 9y = 0
Homework Equations
The Attempt at a Solution
I am confused with second order different equations in it
No. You can integrate y'' twice, but how are you going to integrate y' and y twice?-EquinoX- said:can't I just integrate twice and get the answer? how can I solve this using the method of undeterminant coefficients
-EquinoX- said:well if have initial value y(0) = 2 and y'(0)= 5
then what I get is
y' = -25c2e^(-25t)
5 = -25c2
so c2 = -1/5
and c1 is equal to 11/5
is the true? reason I asked is because the stupid webassign won't accept this answer
Mark44 said:Are you talking about this initial value problem? (This is a different problem from the one you first posted in this thread.)
y'' + 25y = 0, y(0) = 2, y'(0) = 5
If so, your solution looks fine to me. Maybe the webassign thing is looking for decimal values instead of fractions.
An initial value problem is a type of mathematical problem that involves finding a solution to a differential equation based on a given set of initial conditions. These initial conditions specify the value of the unknown function at a particular point in the domain.
An initial value problem consists of a differential equation, a domain or interval of interest, and a set of initial conditions. The differential equation describes the relationship between the unknown function and its derivatives, while the initial conditions specify the values of the unknown function at a particular point in the domain.
An initial value problem is typically solved by using analytical or numerical methods. Analytical methods involve finding an explicit solution to the differential equation, while numerical methods use algorithms to approximate the solution at discrete points in the domain.
Initial value problems are essential in many areas of science and engineering, as they allow us to model and understand complex phenomena that change over time. They are particularly useful in physics, chemistry, and engineering, where many physical processes can be described by differential equations.
Initial value problems have numerous applications in various fields, including population dynamics, chemical reactions, electrical circuits, and the motion of objects under the influence of forces. They are also used in computer simulations and prediction models in fields such as meteorology, economics, and epidemiology.