What is the solution to the inverse Laplace transform of a given integral?

Click For Summary
SUMMARY

The solution to the inverse Laplace transform of the given integral is confirmed to be E, with the derived expression being 3 H(t-3) sin(9(t-3)). The user initially calculated the inverse Laplace transform and arrived at the same expression but faced confusion regarding the convolution integral approach. The correct interpretation of the convolution integral involves maintaining the variable t while applying the Heaviside function H(t-3) and the sine function sin(9(t-3)).

PREREQUISITES
  • Understanding of inverse Laplace transforms
  • Familiarity with Heaviside step functions
  • Knowledge of convolution integrals
  • Basic proficiency in trigonometric functions and their properties
NEXT STEPS
  • Study the properties of inverse Laplace transforms in detail
  • Learn about convolution integrals and their applications in signal processing
  • Explore the use of Heaviside functions in piecewise-defined functions
  • Investigate the relationship between Laplace transforms and differential equations
USEFUL FOR

Students and professionals in engineering, mathematics, and physics who are working with Laplace transforms, particularly those tackling problems involving convolution integrals and step functions.

TyErd
Messages
297
Reaction score
0

Homework Statement


I've attached the multiple choice question


Homework Equations





The Attempt at a Solution



I inversed laplaced the problem and i get an answer of 3 H(t-3) sin(9(t-3)) which isn't any of the options so I chose F but that was wrong. So far I've confidentally eliminated B,C and now F. A D and E remain. I tried using the convolution integral that yields me a different answer as well so I am really confused here
 

Attachments

  • 222222222.png
    222222222.png
    6 KB · Views: 470
Physics news on Phys.org
okay the answer is E. I already have 3 H(t-3) sin(9(t-3)). F(s) is H(t-3) and G(s) = sin(9(t-3)) but then when i write it as a convolution integral, shouldn't the t's be replaced with u instead of replacing the 3 as it is shown.
 
it's cool i got it.
 

Similar threads

  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 1 ·
Replies
1
Views
1K
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K