jjyy898989
幼苗
共回答了35个问题 举报
A-B=1.23456×6.56789-1.23457×6.56788
=1.23456×(6.56788+0.00001)-(1.23456+0.00001)×6.56788
=1.23456×6.56788+1.23456×0.00001-1.23456×6.56788-0.00001×6.56788
=1.23456×0.00001-0.00001×6.56788
=0.00001(1.23456-6.56788)
=-0.00001×5.33332=-0.0000533332<0
所以A
1年前
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