Let's set ∑ to the surface x2 +y2+4z2=4(z≥0) of the upper side, to calculate

匿名用户 最后更新于 2021-10-11 11:59 数学类Mathematics

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Let's set to the surface x +y +4z =(z >0)of the upper side, to calculate√4-x2-4z2dxd


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