[考古] 高師大的考古 明天要考了 請大家幫我解惑吧
1. Find the volume of a ball of radius r by any method in Calculus
|2x|
2.lim -------- = ?
x->0 x
∞
3.If |x|< 1，then find Σ (n+1)(n+2)x^n = ?
n=0
thanks a lot !!
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 125.228.219.128