计算:(1/2+1/3+1/4+...+1/2006)*(1+1/2+1/3+1/4+...+1/2006)计算:(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4+...+1/2006 写错。是:计算:(1/2+1/3+1/4+...+1/2007)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/
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![计算:(1/2+1/3+1/4+...+1/2006)*(1+1/2+1/3+1/4+...+1/2006)计算:(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4+...+1/2006 写错。是:计算:(1/2+1/3+1/4+...+1/2007)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/](/uploads/image/z/2611733-5-3.jpg?t=%E8%AE%A1%E7%AE%97%3A%281%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2006%29%2A%281%2B1%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2006%29%E8%AE%A1%E7%AE%97%3A%281%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2006%29%C3%97%281%2B1%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2006%29-%281%2B1%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2007%29%C3%97%281%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2006+%E5%86%99%E9%94%99%E3%80%82%E6%98%AF%EF%BC%9A%E8%AE%A1%E7%AE%97%3A%281%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2007%29%C3%97%281%2B1%2F2%2B1%2F3%2B1%2F4%2B...%2B1%2F2006%29-%281%2B1%2F)
计算:(1/2+1/3+1/4+...+1/2006)*(1+1/2+1/3+1/4+...+1/2006)计算:(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4+...+1/2006 写错。是:计算:(1/2+1/3+1/4+...+1/2007)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/
计算:(1/2+1/3+1/4+...+1/2006)*(1+1/2+1/3+1/4+...+1/2006)
计算:(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4+...+1/2006
写错。是:计算:(1/2+1/3+1/4+...+1/2007)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4+...+1/2006
计算:(1/2+1/3+1/4+...+1/2006)*(1+1/2+1/3+1/4+...+1/2006)计算:(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4+...+1/2006 写错。是:计算:(1/2+1/3+1/4+...+1/2007)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/
(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2007)×(1/2+1/3+1/4...+1/2006 )
=(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2006+1/2007)×(1/2+1/3+1/4+...+1/2006 )
=(1/2+1/3+1/4+...+1/2006)×(1+1/2+1/3+1/4+...+1/2006)-(1+1/2+1/3+1/4+...+1/2006)×(1/2+1/3+1/4+...+1/2006 )-1/2007*(1/2+1/3+1/4+...+1/2006 )
=-1/2007*(1/2+1/3+1/4+...+1/2006 )