作者lazyman7964 (小酱)
看板trans_math
标题[考古] 高大97考古题帮解 非常急
时间Sat Jul 4 23:09:10 2009
1. Find δ^2f/δxy if f(x,y)＝3x^3 - xy^2 + x^2y + 5Y^3.
2. Find the area of the region bounded by the curves.
x = 4 - y^2 , x - y = -2
3.Find the volume of the solid with cross-sectional area
A(x)=π(8-x)^2 , 0≦x≦8.
4.Solve the initial value problem.
y'=x / cosy , y(0) = 0
请各位高手帮我解题一下
感激不尽
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 114.40.204.156
1F：推 chemical1223:1) -2y + 2x^(2y-1) 59.117.112.204 07/04 23:35
2F：→ chemical1223:手边没有纸只能解这题了@@ 59.117.112.204 07/04 23:35
3F：推 chemical1223:是x^2y还是yx^2 ? 跟6949不一样 59.117.112.204 07/04 23:41
4F：→ chemical1223:如果97抄96的同一题那我的答案不正确 59.117.112.204 07/04 23:42
5F：推 chemical1223:我算错了...=.= 122.120.99.71 07/05 20:04