“1+(-2)+(-3)+4+5+(-6)+(-7)+8...2005+(-2006)”这到题目怎么解啊?急求!
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“1+(-2)+(-3)+4+5+(-6)+(-7)+8...2005+(-2006)”这到题目怎么解啊?急求!
“1+(-2)+(-3)+4+5+(-6)+(-7)+8...2005+(-2006)”这到题目怎么解啊?
急求!
“1+(-2)+(-3)+4+5+(-6)+(-7)+8...2005+(-2006)”这到题目怎么解啊?急求!
1+(-2)+(-3)+4=1+4-2-3=0
5+(-6)+(-7)+8=5+8-6-7=0
.四个一组,以此类推
2001-2002-2003+2004=2001+2004-2003-2002=0
2005-2006=-1