(0.2345*3456-1234*0.4567)/【(6666²-5555²)*4444】
人气:468 ℃ 时间:2020-01-30 05:44:29
解答
(0.2345*3456-1234*0.4567)/【(6666²-5555²)*4444】
=[(1234+1111)*3456-1234*(3456+1111)]/【(6666-5555)(6666+5555)*4444*10000】
=1111(3456-1234)/[1111*1111*11*4444*10000]
=1111*1111*2/[1111*1111*1111*44*10000]
=1/[1111*22*10000]
=1/244420000
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