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数学
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123456789/(123456789*123456789-1234567890*1234567892)
人气:188 ℃ 时间:2020-02-05 23:48:22
解答
上式=123456789/(123456789*123456789-123456789*12345678920)
=123456789/123456789(123456789-12345678920)
=1/(123456789-12345678920)
=-1/12222222131
出这个题的人真的很无聊.如果现在学生都学这些我真的无语.
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