[微積]請大家幫我想想這三題研究所考古題

看板Math作者h29479341 (FLY)時間14年前 (2012/01/20 22:50)推噓2(2推 0噓 13→)

留言15則, 4人參與討論串1/1

x 1. Evaluate lim { (x / x-3)∫ sint / t dt } x->3 3 2.Evaluate ∫∫( 3x+ 4y^2 )dA where R is the region in the upper half-plane R bounded by the circles x^2+y^2=1 and x^2+y^2=4 3.f(x.y.z)=x+y+z subject to the given constraints x^2-y^2=z , x^2+z^2=4 求最大值和最小值?(我用Lagrange function 越用越複雜XD) 請各位解救我實在是想不出來 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.216.81.194

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doublewhi

01/21 03:12, , 1^F

01/21 03:12, 1^F

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doublewhi

01/21 03:13, , 2^F

01/21 03:13, 2^F

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cuttlefish

01/21 04:43, , 3^F

01/21 04:43, 3^F