
Differential Equations Ordinary and Partial Differential Equations Math Forum 
 LinkBack  Thread Tools  Display Modes 
June 20th, 2018, 02:46 AM  #1 
Newbie Joined: Jun 2018 From: Brazil Posts: 1 Thanks: 0  Laplace
Given F (s) s2 / s ^ 2 + s + 1. Find the Laplace transform.

June 20th, 2018, 03:00 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,684 Thanks: 658 
You should clarify = sign and () missing.

June 21st, 2018, 04:22 AM  #3 
Math Team Joined: Jan 2015 From: Alabama Posts: 3,261 Thanks: 896 
Surely you mean "inverse Laplace transform"? Assuming you mean $\displaystyle F(s)= \frac{s 1}{s^2+ s+ 1}$, start by completing the square in the denominator to get a form you can look up in a table of transforms. There is probably one in your text book but there is one here: http://tutorial.math.lamar.edu/pdf/Laplace_Table.pdf. I think you will need numbers "7" and "8" in that table. 

Tags 
laplace 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
help with laplace  shokoloko  Calculus  0  July 8th, 2015 06:16 PM 
Relatioship between Laplace and Inverse Laplace Transform from tables  szz  Differential Equations  1  November 2nd, 2014 04:18 AM 
PDE Help! Laplace  Luci1092  Differential Equations  0  May 14th, 2014 09:23 PM 
Laplace tranform and inverse of Laplace transform  Deiota  Calculus  1  April 28th, 2013 11:28 AM 
Laplace  Fernando  Real Analysis  2  May 25th, 2012 09:03 AM 