純數(shù)1，3之后學(xué)什么純數(shù)？——9231 進(jìn)階純數(shù)1
純數(shù)1，3之后學(xué)什么純數(shù)？——9231 純數(shù)1
-1.3 數(shù)列求和部分
use the method of differences to obtain the sum of a finite series -題目1(a)(b)
recognise, by direct consideration of a sum to
n
terms, when a series is convergent, and find the sum to infinity in such cases.?-題目1(c)
標(biāo)簽：
