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问题详情

求fx2/1+x2dx()

A、. x - arctanx

B、. x - + C

C、. X + arctanx

D、. X + arctanx + C

时间：2021-09-01 20:10 关键词：青书学堂辽宁师范大学高等数学(一)

答案解析

B

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