A pie is removed from an oven and its temperature is and placed into a refrigerator whose temperature is constantly . After hour in the refrigerator, the pie is . What is the temperature of the pie hours after being placed in the refrigerator?
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 9.3.6
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.
e⁴ᵗy'(t) = 5
Verified step by step guidance1
Identify the given differential equation: \(e^{4t} y'(t) = 5\).
Rewrite the equation to isolate \(y'(t)\): \(y'(t) = \frac{5}{e^{4t}} = 5 e^{-4t}\).
Recognize that this is a separable differential equation where \(y'(t)\) is expressed explicitly in terms of \(t\).
Integrate both sides with respect to \(t\) to find \(y(t)\): \(y(t) = \int 5 e^{-4t} \, dt\).
Perform the integration using the formula \(\int e^{at} dt = \frac{1}{a} e^{at} + C\), and include the constant of integration \(C\) to express the general solution.
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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 so that all terms involving the dependent variable are on one side and all terms involving the independent variable are on the other. This allows integration of both sides separately to find the general solution.
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Solving Separable Differential Equations
Integration of Both Sides
After separating variables, integrate each side with respect to its variable. This step is crucial to find an implicit or explicit form of the solution, often involving an integration constant representing the general solution.
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One-Sided Limits
Expressing the Solution Explicitly
Once integrated, solve the resulting equation for the dependent variable explicitly as a function of the independent variable. This often involves algebraic manipulation to isolate the dependent variable on one side.
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Simplifying Trig Expressions
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