-2e -2t 4 3 -3x -16x²-5cos (x√√2) -5cos(x√2) 2 3

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Find the Laplace transforms of the following functions:

 

Subject : DIFFERENTIAL EQUATION
Topic: Laplace Transforms

Below is the Table of Laplace Transforms.

1.
3.
5.
7.
9.
15.
17.
f(t)=2*{F(s)}
19.
1
11. sin(at) at cos(at)
21.
t", n=1,2,3....
13. cos(at)-at sin (at)
sin(at+b)
sinh(at)
e sin (br)
√t
sin(at)
t sin (at)
e sinh(bt)
23. te, n=1,2,3,...
u(t)= u(t-c)
Heaviside Function
25.
27. u(t)f(t-c)
29. eºf(t)
31. f(t)
33. ff(t-1)g(1) dr
35. f'(t)
37. f(") (t)
Table of Laplace Transforms
F(s) = 2{f(t)}
S
ESTE
+1
a
s² + a²
2as
(s² + a²)²
2a³
(s² + a²)²
s(s²-a²)
(s² + a²)²
ssin (b) + acos (b)
s² + a²
a
s²-a²
(s-a)² + b²
b
(s-a)²-8²
n!
(s-a)***
S
e™ F (s)
F(s-c)
*F(u) du
4.
f(t)=2²¹{F(s)}
at
e
tº,p>-1
6. n=1,2,3,...
8. cos(at)
10. tcos(at)
12. sin(at)+ at cos(at)
14. cos(at)+ at sin(at)
16. cos(at+b)
18. cosh (at)
20. e" cos(bt)
22. e cosh (br)
24. f(ct)
8 (t-c)
Dirac Delta Function
26.
28. u(t)g(t)
30. tf(t), n=1,2,3....
32. ff(v) dv
F(s) G(s)
SF (s)-f(0) 36. f(t)
34. f(t+1)=f(t)
F(s) = £{f(t)}
1
s-a
I(p+1)
1-3-5---(2n-1)√
2****
S
s² + a²
s²-a²
(s² + a²)²
2as²
(s² + a²)²
s(s²+3a²)
(s² + a²)²
scos (b)-a sin (b)
s² + a²
S
5²-a²
s-a
(s-a)² + b²
s-a
(s-a)²-b²
+ F(-)
-cs
e{g(t+c)}
(-1)" F") (s)
F(s)
S
Sef (t) at
1-e
s²F (s)-sf (0)-f'(0)
s" F (s)-sf (0)-5-²ƒ' (0)-sfn-²) (0)-¹) (0)
Transcribed Image Text:1. 3. 5. 7. 9. 15. 17. f(t)=2*{F(s)} 19. 1 11. sin(at) at cos(at) 21. t", n=1,2,3.... 13. cos(at)-at sin (at) sin(at+b) sinh(at) e sin (br) √t sin(at) t sin (at) e sinh(bt) 23. te, n=1,2,3,... u(t)= u(t-c) Heaviside Function 25. 27. u(t)f(t-c) 29. eºf(t) 31. f(t) 33. ff(t-1)g(1) dr 35. f'(t) 37. f(") (t) Table of Laplace Transforms F(s) = 2{f(t)} S ESTE +1 a s² + a² 2as (s² + a²)² 2a³ (s² + a²)² s(s²-a²) (s² + a²)² ssin (b) + acos (b) s² + a² a s²-a² (s-a)² + b² b (s-a)²-8² n! (s-a)*** S e™ F (s) F(s-c) *F(u) du 4. f(t)=2²¹{F(s)} at e tº,p>-1 6. n=1,2,3,... 8. cos(at) 10. tcos(at) 12. sin(at)+ at cos(at) 14. cos(at)+ at sin(at) 16. cos(at+b) 18. cosh (at) 20. e" cos(bt) 22. e cosh (br) 24. f(ct) 8 (t-c) Dirac Delta Function 26. 28. u(t)g(t) 30. tf(t), n=1,2,3.... 32. ff(v) dv F(s) G(s) SF (s)-f(0) 36. f(t) 34. f(t+1)=f(t) F(s) = £{f(t)} 1 s-a I(p+1) 1-3-5---(2n-1)√ 2**** S s² + a² s²-a² (s² + a²)² 2as² (s² + a²)² s(s²+3a²) (s² + a²)² scos (b)-a sin (b) s² + a² S 5²-a² s-a (s-a)² + b² s-a (s-a)²-b² + F(-) -cs e{g(t+c)} (-1)" F") (s) F(s) S Sef (t) at 1-e s²F (s)-sf (0)-f'(0) s" F (s)-sf (0)-5-²ƒ' (0)-sfn-²) (0)-¹) (0)
4
9.-2e-2 + -e
3
10. 16x²-5cos (x√√2)
-3.x
2
3
Transcribed Image Text:4 9.-2e-2 + -e 3 10. 16x²-5cos (x√√2) -3.x 2 3
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