📘 differential equations

1. **State the problem:** Solve the system of differential equations using Laplace transform: $$2 \frac{dx}{dt} + \frac{dy}{dt} = 5 e^t$$

1. **State the problem:** Solve the differential equation $$\frac{dy}{dx} + 2xy = 0$$. 2. **Identify the type:** This is a first-order linear differential equation of the form $$\f

1. **State the problem:** Solve the initial value problem (IVP) given by the differential equation $$(1 - 9t) \frac{dy}{dt} - y = 0$$ with the initial condition $$y(3) = -4$$. 2. *

1. **State the problem:** We want to solve the differential equation $$y' = x^2 + y^2$$ with initial condition $$y(0) = 1$$ using the Taylor series method of order four on the inte

1. **State the problem:** Find the particular solution of the differential equation $$x \frac{dy}{dx} = \frac{x^2}{y} + y^2$$ given the initial condition $x=1$, $y=4$. 2. **Rewrite

1. The problem involves two differential equations describing population growth and decay: (E₁): $y' = 0.022y(20 - y)$ and (E₂): $y' = -0.44y + 0.022$

1. **Stating the problem:** We want to identify whether an ordinary differential equation (ODE) is linear or nonlinear and provide examples. 2. **Definition of linear ODE:** An ODE

1. **State the problem:** Solve the differential equation $$y' = \frac{1}{x}y^2 + \frac{1}{x}y - \frac{2}{x}$$ given that $$y=1$$ is a solution, using the Riccati method. 2. **Reca

1. **State the problem:** Solve the differential equation $$y' = \frac{1}{x} y^2 + \frac{1}{x} y - \frac{2}{x}$$ given that $$y=1$$ is a solution. 2. **Identify the type:** This is

1. **State the problem:** Solve the differential equation $$y' = \frac{1}{x}y^2 + \frac{1}{x}y - \frac{2}{x}$$ given that $$y=1$$ is a solution. 2. **Identify the type of equation:

1. The problem is to solve a differential equation, but since the specific equation is not provided, I will explain a common method used to solve differential equations: separation

1. **State the problem:** Solve the differential equation $$y' = \frac{1}{x}y^2 + \frac{1}{x}y - \frac{2}{x}$$ given that $$y=1$$ is a solution. 2. **Rewrite the equation:** Factor

1. Problem: Solve the differential operator equation $$y'' + 2y' - 3y = (3x + 2)e^{-2x}$$ using the differential operator $D = \frac{d}{dx}$. 2. Formula: The operator form is $$(D^

1. **Stating the problem:** Solve the differential equation $$y'' + 2xy' + x'y = 0$$ where $y''$ is the second derivative of $y$ with respect to $x$, $y'$ is the first derivative,

1. **State the problem:** We have a system of differential equations:

1. **State the problem:** We have the system of differential equations:

1. **Problem Statement:** Solve the system of differential equations using Euler's method with initial conditions $y_1(0) = 4$, $y_2(0) = 6$, step size $h = 0.5$, and integrate up

1. **Problem Statement:** We consider the differential equation $\dot{x} = f(x)$ where $f(x)$ is given by the graph described. 2. **Phase Line and Equilibria:** Equilibrium points

1. Énonçons le problème : On doit résoudre une équation différentielle en utilisant la transformée de Laplace. 2. Rappel de la définition de la transformée de Laplace : Pour une fo

1. **Énoncé du problème :** Résoudre l'équation différentielle $$ (X + 1) \frac{d\sigma}{dX} - X \sigma + 1 = 0 $$ avec la condition initiale $$ \sigma(0) = 2 $$ en utilisant la tr

1. **State the problem:** Find the integral curves of the system given by the equation $$\frac{dx}{x+z} = \frac{dy}{y} = \frac{dz}{z+y^2}$$. 2. **Understand the problem:** Integral