作者flygey (努力达成目标)
看板trans_math
标题[考古] 请问两题计算题
时间Thu Jul 3 17:47:54 2008
1.Find the critical points and extrema of z=f(x,y)=xe^xsiny
oo
2.Sequence {an} whose the first three term are :
n=1
a1=1+1/2 , a2=1+1/(2+1/2) , a3=1+1/(2+1/(2+1/2))
(1)What is the fifth term
(2)Give the general form of an
(3){an} convergence or divergence? If convergence then find it's limit
else state the reason for divergence.
请教以上两题
请版友指导
感谢
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.137.49.2
1F：推 ht15trep:1.所求为fx=0, fy=0, Δ>0的点 124.8.14.136 07/03 18:16