two integrations
回答 (2)
2011-08-27 11:35 pm
2011-08-27 11:53 pm
∫_(0~∞) cos(x)/(1+x²) dx = 1/2
∫_(0~∞) xsin(x)/(1+x²) dx = 0
∫_(0~∞) xsin(x)/(1+x²) dx = 0
收錄日期: 2021-04-16 13:39:11
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