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...
Related questions
Question

Transcribed Image Text:In Problems 11–30 use variation of parameters to solve the
given system.
dx
11.
— Зх — Зу + 4
dt
dy
2х — 2у — 1
dt
%3D
|
dx
12.
= 2x – y
dt
dy
Зх — 2у + 4t
dt
-5
X +
-1
13. X'
%3D
3

Transcribed Image Text:sin 2t
14. X' =
X +
2 cos 2t)
0 2
X +
1
15. X' =
0 2
X +
1
16. X' =
e-3t
17. X' =
12
X +
18. X' =
X +
-1,
te'
2e-
3
19. X' =
-2
-1
(G)
3
20. X' =
X +
-2
sec t
+
21. X' =
22. X' =
+
(cos t
X +
sin
23. X' =
X +
--
24. X' =
0 1
|X +
25. X' =
\sec t tan
1
X +
26. X' =
cot t
(csc t
27. X' =
2
1
X +
\sec
´tan t
28. X' =
х+
1
1
et
29. X' =
1
1
0 X +
0 3
\te3t
-1
30. X' = | 1
1
-1 X +
1
-1
2e'
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