Which of the following differential equations is separable?
Table of contents
- 0. Functions7h 54m
- Introduction to Functions16m
- Piecewise Functions10m
- Properties of Functions9m
- Common Functions1h 8m
- Transformations5m
- Combining Functions27m
- Exponent rules32m
- Exponential Functions28m
- Logarithmic Functions24m
- Properties of Logarithms36m
- Exponential & Logarithmic Equations35m
- Introduction to Trigonometric Functions38m
- Graphs of Trigonometric Functions44m
- Trigonometric Identities47m
- Inverse Trigonometric Functions48m
- 1. Limits and Continuity2h 2m
- 2. Intro to Derivatives1h 33m
- 3. Techniques of Differentiation3h 18m
- 4. Applications of Derivatives2h 38m
- 5. Graphical Applications of Derivatives6h 2m
- 6. Derivatives of Inverse, Exponential, & Logarithmic Functions2h 37m
- 7. Antiderivatives & Indefinite Integrals1h 26m
- 8. Definite Integrals4h 44m
- 9. Graphical Applications of Integrals2h 27m
- 10. Physics Applications of Integrals 3h 16m
- 11. Integrals of Inverse, Exponential, & Logarithmic Functions2h 34m
- 12. Techniques of Integration7h 41m
- 13. Intro to Differential Equations2h 55m
- 14. Sequences & Series5h 36m
- 15. Power Series2h 19m
- 16. Parametric Equations & Polar Coordinates7h 58m
13. Intro to Differential Equations
Separable Differential Equations
Problem 9.3.9
Textbook Question
5–16. Solving separable equations Find the general solution of the following equations. Express the solution explicitly as a function of the independent variable.
y'(t) = eʸᐟ²sin t
Verified step by step guidance1
Rewrite the given differential equation in terms of \( y \) and \( t \): \( \frac{dy}{dt} = e^{y/2} \sin t \).
Separate the variables by bringing all terms involving \( y \) to one side and all terms involving \( t \) to the other side: \( e^{-y/2} dy = \sin t \, dt \).
Integrate both sides: \( \int e^{-y/2} \, dy = \int \sin t \, dt \).
Evaluate the integrals: for the left side, use substitution to integrate \( e^{-y/2} \), and for the right side, recall that \( \int \sin t \, dt = -\cos t + C \).
After integration, solve the resulting equation explicitly for \( y \) as a function of \( t \), including the constant of integration.
Verified video answer for a similar problem:This video solution was recommended by our tutors as helpful for the problem above
Video duration:
3mPlay a video:
Was this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Separable Differential Equations
A separable differential equation can be written as a product of a function of the dependent variable and a function of the independent variable. This allows the variables to be separated on opposite sides of the equation, enabling integration with respect to each variable independently.
Recommended video:
Solving Separable Differential Equations
Integration Techniques
Solving separable equations requires integrating both sides after separation. Familiarity with integrating exponential functions and trigonometric functions, such as sin(t), is essential to find the antiderivatives and express the solution explicitly.
Recommended video:
Integration by Parts for Definite Integrals
Implicit and Explicit Solutions
After integration, solutions may be implicit or explicit. An explicit solution expresses the dependent variable directly as a function of the independent variable, which often involves algebraic manipulation or applying inverse functions to isolate the dependent variable.
Recommended video:
Finding The Implicit Derivative
Watch next
Master Separation of Variables with a bite sized video explanation from Patrick
Start learningRelated Videos
Related Practice
Multiple Choice
60
views
