The differential equation dy 3 4 xy = x* + y* is not separable as dx written. However, assuming x + 0, you can make the substitution v = (that is, y = vx ), dy in terms of dx and then write dv v, and x. (Remember y and v are dx functions of x, so use implicit differentiation.) This gives dy dx dv dx Using that result, you can rewrite the dy original equation æy° .4 = x* + y* as dx separable equation in v and x: +

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...
Question
The differential equation
dy
= x* + y* is not separable as
3
4
4
xy³
dx
written.
However, assuming x + 0, you can make
the substitution v =
(that is, y = vx ),
dy
in terms of
dx
and then write
dv
and x. (Remember y and v are
dx
functions of x, so use implicit
differentiation.) This gives
dy
dx
dv
+
dx
Using that result, you can rewrite the
dy
= x* + y´ as
3
4
original equation xy°
=
da
separable equation in v and x:
dv
v + x
dx
Then separate the equation so that
1
dx
dv
||
||
Transcribed Image Text:The differential equation dy = x* + y* is not separable as 3 4 4 xy³ dx written. However, assuming x + 0, you can make the substitution v = (that is, y = vx ), dy in terms of dx and then write dv and x. (Remember y and v are dx functions of x, so use implicit differentiation.) This gives dy dx dv + dx Using that result, you can rewrite the dy = x* + y´ as 3 4 original equation xy° = da separable equation in v and x: dv v + x dx Then separate the equation so that 1 dx dv || ||
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Differential Equation
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781285741550
Author:
James Stewart
Publisher:
Cengage Learning
Thomas' Calculus (14th Edition)
Thomas' Calculus (14th Edition)
Calculus
ISBN:
9780134438986
Author:
Joel R. Hass, Christopher E. Heil, Maurice D. Weir
Publisher:
PEARSON
Calculus: Early Transcendentals (3rd Edition)
Calculus: Early Transcendentals (3rd Edition)
Calculus
ISBN:
9780134763644
Author:
William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher:
PEARSON
Calculus: Early Transcendentals
Calculus: Early Transcendentals
Calculus
ISBN:
9781319050740
Author:
Jon Rogawski, Colin Adams, Robert Franzosa
Publisher:
W. H. Freeman
Precalculus
Precalculus
Calculus
ISBN:
9780135189405
Author:
Michael Sullivan
Publisher:
PEARSON
Calculus: Early Transcendental Functions
Calculus: Early Transcendental Functions
Calculus
ISBN:
9781337552516
Author:
Ron Larson, Bruce H. Edwards
Publisher:
Cengage Learning