作者Aprilgreen (最後一年罗↗☆)
看板trans_math
标题[考古] 帮帮忙
时间Wed Jul 20 01:47:11 2005
find the value of x for which the series
∞
Σ(x-1)^n converges
n=1
(A)o<x≦1(B)-2≦x<0 (C)-2<x≦0 (D)0≦x<2
(E)-2<x<0 (F)o<X<2 (G)0≦x≦2 (H)-2≦X≦0
第二题
from the following equation,use implicit differentiation to fine dy/dx│x=0
sin(xy^2)=2x+y-1
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