Evaluaed the integral ∫r XY dA ,where r isthe triangle X-Y<=1 , X>=0 ,Y>=0 .
需要詳細過程~謝謝
收錄日期: 2021-04-23 23:24:59
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https://hk.answers.yahoo.com/question/index?qid=20130705000015KK04111