Let D={(x,y)│x^2+y^2≤1,x≥0}, to calculate . - 道道学堂问答

Let D={(x,y)│x^2+y^2≤1,x≥0}, to calculate .

匿名用户最后更新于 2021-10-31 22:05 数学类Mathematics

Letd={x,y)x2+y2≤1,x≥0}, to calculate+2xy dxdy√1+x2+y2

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