Page 11 - LAPLACE TRANSFORM
P. 11

Example   3






                  Find Laplace Transform, of the following by using the Definition

                      of Laplace Transform.


                      f ( t) = e  t 2

                                      ∞
                                F( s) = ∫ e − st  • e  t 2  dt

                                       0

                                         =  ∫ ∞ e −t ( −2s  )    dt
                                       ο

                                       e − st ( −2 )    ∞
                                         =   − (s  − )2  
                                            1   ο 
                                      
                                         = 0 +  (s  − ) 
                                      
                                               2
                                                 
                                      
                                        =  1        where   s >  a
                                      s  −  2





















          Example   4





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