It can be helpful to classify a differential equation, so that we can predict the techniques that might help us to find a function which solves the equation. Two classifications are the order of the equation -- (what is the highest number of derivatives involved) and whether or not the equation is linear . Linearity is important because the structure of the the family of solutions to a linear equation is fairly simple. Linear equations can usually be solved completely and explicitly. Determine whether or not each equation is linear

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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It can be helpful to classify a differential equation, so that we can predict the techniques that might help us to find a function which solves the equation. Two classifications are the order of the equation -- (what is the highest number of derivatives involved) and whether or not the equation is linear .
Linearity is important because the structure of the the family of solutions to a linear equation is fairly simple. Linear equations can usually be solved completely and explicitly. Determine whether or not each equation is linear:

 

d'y
+
dt3
d°y
dy, dy
1.
+
1
dt4
dt2
dt
dy
?
+ sin(t + y) = sin t
2.
dt2
3. (1+ y²)-
ip
d'y
+t
?
+ y = et
dt?
dt
>
>
Transcribed Image Text:d'y + dt3 d°y dy, dy 1. + 1 dt4 dt2 dt dy ? + sin(t + y) = sin t 2. dt2 3. (1+ y²)- ip d'y +t ? + y = et dt? dt > >
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