8. Make a substitution to solve the following DEs. 3у2 — х2 2xy (b) y' + 1 = (y + x)², let u = x + y. (c) 2yy' = cos(y²). (a) y' = " let u = 21.
8. Make a substitution to solve the following DEs. 3у2 — х2 2xy (b) y' + 1 = (y + x)², let u = x + y. (c) 2yy' = cos(y²). (a) y' = " let u = 21.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
please solve it on paper
The second pic is the answers from the answer key
Transcribed Image Text:8.
a. y² = x² + x³
1
b. y = -x -
x+C
c.
tan(y²) + sec(y²) = Ce*
Transcribed Image Text:8. Make a substitution to solve the following DES.
3y² - x²
2xy
(b) y' + 1 = (y + x)², let u = x + y.
(c) 2yy' = cos(y²).
(a) y'
=
"
let u =
Y
x
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