how to slove
∫(e^x+1)/(e^x-1)dx
integration by sub
2011-10-09 7:25 pm
回答 (1)
2011-10-09 8:26 pm
✔ 最佳答案
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參考: 土扁
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https://hk.answers.yahoo.com/question/index?qid=20111009000051KK00285