推 Starvilo : ibp 04/09 00:10
推 LPH66 : u=y, v=e^-y 04/09 00:25
→ djljing : 最後要加C嗎? 04/09 00:32
→ Panthalassa : 要@@ 04/09 02:23
推 Pieteacher : Integration by part 04/09 20:27
∫ye^(-y)dy
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