[79年清華理工]
∞ An n
Suppose that ln(1+x)=Σ ------- x ,( |x|﹤1 ), where An's are constants.
n=1 n
∞ An
Then A = ? , and Σ ------------ = ? 此題的第二小題不懂~~
20 n=1 2^n*n(n+1)
[89年交大資工]
2
Let f(x)=x(sinx)
(a)Fund the power series representation of f(x) in powers of x
(2001)
(b)Find f (0)
[89台大c]
3 x (n)
設f(x)=x e ,則f在x=0的n次導數f (0)= ?
感謝之前大家的幫忙，感恩嘿!!
※ 編輯: ying1019 來自: 210.58.172.85 (07/21 00:00)