兩題laplace反轉換

[nini851216 (解壓縮)]

(I)完全不知道怎麼動手..

求高手

https://i.imgur.com/W2ToNua.jpg

https://i.imgur.com/rj2KifG.jpg

https://i.imgur.com/3My2uXO.jpg

https://i.imgur.com/o1DAS8h.jpg

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