纯循环小数0.142857(142857循环),最少从小数点后面第1位开始,到第447位为止的数字之和等于2005
1+4+2+8+5+7=27
2005/27=74……7
74*6=444
444+3=447
纯循环小数0.142857(142857循环),最少从小数点后面第几位开始,到第几位为止的数字之和等于2005?
纯循环小数0.142857(142857循环),最少从小数点后面第几位开始,到第几位为止的数字之和等于2005?
我急用,快点啊~!
我急用,快点啊~!
数学人气:210 ℃时间:2019-11-14 23:45:50
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