1-2+3-4+5-6+...-2002+2003-2004
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 19:38:06
![1-2+3-4+5-6+...-2002+2003-2004](/uploads/image/z/591431-23-1.jpg?t=1-2%2B3-4%2B5-6%2B...-2002%2B2003-2004)
1-2+3-4+5-6+...-2002+2003-2004
1-2+3-4+5-6+...-2002+2003-2004
1-2+3-4+5-6+...-2002+2003-2004
1-2+3-4+5-6+...-2002+2003-2004
=(1-2)+(3-4)+(5-6)+...+(2001-2002)+(2003-2004)
=-1-1-1-1-.-1-1
=-1*1002
=-1002