(2n+1)/2^(n+1)*x^2n级数求和!
问题描述:
(2n+1)/2^(n+1)*x^2n级数求和!
答
思路应该没错,先逐项积分对和式求导
(2n+1)/2^(n+1)*x^2n级数求和!
思路应该没错,先逐项积分对和式求导