简便计算:(1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2/99)×(1-2/99)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/12 22:56:49
简便计算:(1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2/99)×(1-2/99)
![简便计算:(1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2/99)×(1-2/99)](/uploads/image/z/17704720-64-0.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%881%2B2%2F3%EF%BC%89%C3%97%EF%BC%881%EF%BC%8D2%2F3%EF%BC%89%C3%97%EF%BC%881%2B2%2F5%EF%BC%89%C3%97%EF%BC%881-2%2F5%EF%BC%89%C3%97.%C3%97%EF%BC%881%2B2%2F99%EF%BC%89%C3%97%EF%BC%881-2%2F99%EF%BC%89)
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再问: 啥
再答: 5/3x1/3x7/5x3/5
再答: 5/9x21/25
再答: 7/15
再问: 啥
再答: 5/3x1/3x7/5x3/5
再答: 5/9x21/25
再答: 7/15
能简便计算的简便计算:【1-(1-2/3/2/3)】*7/18
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