幂级数缺项求收敛域是哪种题型

问题描述:

幂级数缺项求收敛域是哪种题型

幂级数是 ∑ax^(2n) 型,∑ax^(2n+1) 型,
∑ax^(3n) 型,∑ax^(3n+1) 型,∑ax^(3n+2) 型,
.