作者linda1218 (linda)
看板trans_math
标题[考古] 96成大
时间Sun Jun 15 02:52:23 2008
1. show that arctan( x+1 / x-1 )+ arctan(x)=C and find the value C
2. find the surface area of the portions of the sphere x^2 +y^2 +z^2=4
that are within the cyclinder (x-1)^2 + y^2 =1
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※ 编辑: linda1218 来自: 61.229.132.72 (06/15 02:53)
1F：推 andyfc1:其实不会很难 140.112.242.85 06/15 18:19