+2-3-4+5+6-7-8+...+2001+2002-2003-2004=(1+2-3-4)+(5+6-7-8)+...+(2001+2002-2003-2004)=(-4)+(-4)+(-4)+.+(-4)=(-4)*2004/4=-2004 倒数第2步2004除以4是为什么?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 23:49:21
![+2-3-4+5+6-7-8+...+2001+2002-2003-2004=(1+2-3-4)+(5+6-7-8)+...+(2001+2002-2003-2004)=(-4)+(-4)+(-4)+.+(-4)=(-4)*2004/4=-2004 倒数第2步2004除以4是为什么?](/uploads/image/z/10139262-6-2.jpg?t=%2B2-3-4%2B5%2B6-7-8%2B...%2B2001%2B2002-2003-2004%3D%281%2B2-3-4%29%2B%285%2B6-7-8%29%2B...%2B%282001%2B2002-2003-2004%29%3D%28-4%29%2B%28-4%29%2B%28-4%29%2B.%2B%28-4%29%3D%28-4%29%2A2004%2F4%3D-2004+%E5%80%92%E6%95%B0%E7%AC%AC2%E6%AD%A52004%E9%99%A4%E4%BB%A54%E6%98%AF%E4%B8%BA%E4%BB%80%E4%B9%88%3F)
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