H3. Solve the following differential equations d²y dy + - 2y = 0, dx² dx 1) 2) +2. +5y = 0, dx y(0) = 1, y'(0) = 2 y(0) = 2,y'(0) = 1

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.
Chapter11: Differential Equations
Section11.CR: Chapter 11 Review
Problem 12CR
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H3. Solve the following differential equations
d²y dy
+ - 2y = 0,
dx² dx
1)
2)
+2. +5y = 0,
dx
y(0) = 1, y'(0) = 2
y(0) = 2,y'(0) = 1
Transcribed Image Text:H3. Solve the following differential equations d²y dy + - 2y = 0, dx² dx 1) 2) +2. +5y = 0, dx y(0) = 1, y'(0) = 2 y(0) = 2,y'(0) = 1
H2. For the second order differential equation
d²y
dt²
+
dy
dt
2
so that
= 2e-y
make the change of variables v =
d
dt
Then, use the chain rule to find f(y, v) such that
dv
dy
v=2e="_v².
= f(y, v).
and solve the resulting Bernoulli equation for v (as a function of y). Finally, find y
from the definition of v.
Transcribed Image Text:H2. For the second order differential equation d²y dt² + dy dt 2 so that = 2e-y make the change of variables v = d dt Then, use the chain rule to find f(y, v) such that dv dy v=2e="_v². = f(y, v). and solve the resulting Bernoulli equation for v (as a function of y). Finally, find y from the definition of v.
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