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嗨,你這個打的有問題吧,應該是1/2+1/4+1/8+……+1/512+1/1024吧那麼計算就是1/2+1/4+1/8+……+1/512+1/1024+1/1024-1/1024=1/2+1/4+1/8+……+1/256+1/512+1/512-1/1024=1/2+1/4+1/8+……+1/256+1/256-1/1024=……=1/…
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