1/2+1/4+1/8+1/16+……+1/1024
這種題目共有三種做法:
1、通分,顯然有些麻煩
2、1樓的裂項
3、補一個最后的分數(shù)1/1024,同時在減去一個1/1024
2樓的忘了減去1/1024
5+0.25+0.125....+0.0009766>>要怎樣做
5+0.25+0.125....+0.0009766>>要怎樣做
數(shù)學(xué)人氣:491 ℃時間:2020-09-06 17:45:11
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