Page 14 - LAPLACE TRANSFORM
P. 14

By using Integration by parts formula:










                                                          −1
                                                                         −1
                                                   = (t) (   e ) − ꭍ (1) (  e ) dt     ;0 < t < ∞
                                                              -s t
                                                                             -s t
                                                                            
                                                          −1
                                                                   1
                                                                        -s t
                                                              -s t
                                                   = (t) (   e ) +   ꭍ (e ) dt         ;0 < t < ∞
                                                                     
                                                          −1        1   1            ∞
                                                              -s t
                                                   = (t) (   e ) +    ( ) [     −         ]
                                                                        −            0
                                                          1   1           ∞
                                                   = 0 −    ( ) [     −         ]
                                                                          0
                                                          1
                                                   = 0 −    [  0 − 1   ]
                                                             2
                                                         1            1       1
                                                   = −    [  −1   ]  =    =     [   ]
                                                           2            2        2
                                                      2
                                                   F(S)  =
                                                         2

                                                                               Laplace Transform Table

                        3  Linear                                               t












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