一.a,b,c在数轴上的位置如图,化简|b-c|-|b+c|+|a-c|-|a+c|-|a+b|二.计算:3/(2+4+6……+1004)+3/(2+4+6……+1006)+……+3/(2+4+6+……+2014)三.一列数按如下规律排列:1,-1/2,5,-1/4,9,-1/6,13,-1/8,……则第2013
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![一.a,b,c在数轴上的位置如图,化简|b-c|-|b+c|+|a-c|-|a+c|-|a+b|二.计算:3/(2+4+6……+1004)+3/(2+4+6……+1006)+……+3/(2+4+6+……+2014)三.一列数按如下规律排列:1,-1/2,5,-1/4,9,-1/6,13,-1/8,……则第2013](/uploads/image/z/1037163-3-3.jpg?t=%E4%B8%80.a%2Cb%2Cc%E5%9C%A8%E6%95%B0%E8%BD%B4%E4%B8%8A%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%A6%82%E5%9B%BE%2C%E5%8C%96%E7%AE%80%7Cb-c%7C-%7Cb%2Bc%7C%2B%7Ca-c%7C-%7Ca%2Bc%7C-%7Ca%2Bb%7C%E4%BA%8C.%E8%AE%A1%E7%AE%97%EF%BC%9A3%2F%EF%BC%882%2B4%2B6%E2%80%A6%E2%80%A6%2B1004%EF%BC%89%2B3%2F%EF%BC%882%2B4%2B6%E2%80%A6%E2%80%A6%2B1006%EF%BC%89%2B%E2%80%A6%E2%80%A6%2B3%2F%EF%BC%882%2B4%2B6%2B%E2%80%A6%E2%80%A6%2B2014%EF%BC%89%E4%B8%89.%E4%B8%80%E5%88%97%E6%95%B0%E6%8C%89%E5%A6%82%E4%B8%8B%E8%A7%84%E5%BE%8B%E6%8E%92%E5%88%97%EF%BC%9A1%2C-1%2F2%2C5%2C-1%2F4%2C9%2C-1%2F6%2C13%2C-1%2F8%2C%E2%80%A6%E2%80%A6%E5%88%99%E7%AC%AC2013)
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