exdct UUL OLLE factor. Then solve the equation. 16/ 2xy3 + x(1 + y² )y' = 0, H(x, y) = 1/xy³ %3D sin y ( cos y + 3e cos x + 17 3e-X sin x

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter4: Calculating The Derivative
Section4.5: Derivatives Of Logarithmic Functions
Problem 47E
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16th. How can I get the value of u(x,y)=1/xy3? 

In each of Problems 16 and 18, show that the given equation is not
exact but becomes exact when multiplied by the given integrating
factor. Then solve the equation.
16/ 2xy + x(1 + y² )y' = 0,
µ(x, y) = 1/xy³
X-
sin y
cos y + 3e¯ cos x
y = 0,
=D0,
17.
- 3e- sin x
y
H(x, y) = ye*
%3D
18. y+ (2x – 3ye")y' = 0, µ(x, y) = y
19. Show that if (N, - M)/(xM – yN) = R, where R depends on the
quantity xy only, then the differential equation
M + Ny' = 0
2.7 Numerical Approximations:
Euler's Method
Recall two important facts about the first-order initial value prob
dy
%= f(t, y),
dt
y(10) = yo-
First, if f and df /dy are continuous, then the initial value prob
y = $(1) in some interval surrounding the initial point t = to: Sec
to find the solution o by symbolic manipulations of the differe
have considered the main exceptions to the
%3D
Transcribed Image Text:In each of Problems 16 and 18, show that the given equation is not exact but becomes exact when multiplied by the given integrating factor. Then solve the equation. 16/ 2xy + x(1 + y² )y' = 0, µ(x, y) = 1/xy³ X- sin y cos y + 3e¯ cos x y = 0, =D0, 17. - 3e- sin x y H(x, y) = ye* %3D 18. y+ (2x – 3ye")y' = 0, µ(x, y) = y 19. Show that if (N, - M)/(xM – yN) = R, where R depends on the quantity xy only, then the differential equation M + Ny' = 0 2.7 Numerical Approximations: Euler's Method Recall two important facts about the first-order initial value prob dy %= f(t, y), dt y(10) = yo- First, if f and df /dy are continuous, then the initial value prob y = $(1) in some interval surrounding the initial point t = to: Sec to find the solution o by symbolic manipulations of the differe have considered the main exceptions to the %3D
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ISBN:
9780321964038
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Publisher:
Pearson Addison Wesley,