简便计算 (1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2简便计算 (1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2/99)×(1-2/99)
2022-09-17 23:01:45 36次 反馈错误 加入收藏 正确率 : 100%
题目内容:
简便计算 (1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2
简便计算 (1+2/3)×(1-2/3)×(1+2/5)×(1-2/5)×.×(1+2/99)×(1-2/99)
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