∫(1-1/x2)ex+1/x+2dx=________.

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问题 ∫(1-1/x2)ex+1/x+2dx=________.

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答案ex-1/x+2+C

解析 ∫(1-1/x2)ex-1/x+2-∫ex+1/x+2d(x+1/x+2)=ex-1/x+2+C.
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