-1+2-3+4...-99+100 1/1×2+1/2×3+1/3×4+...+1/2009×2010+1/2010×

-1+2-3+4...-99+100 1/1×2+1/2×3+1/3×4+...+1/2009×2010+1/2010× (-1)+(+2)+(-3)+(+4)+...+(-99)+(+100)+...+(-2009)+(+2010)=___ 计算：（-1）+(+2)+(-3)+(-4)+.+(-99)+(+100)+.+(-2009)+(+2010) (1-1/2-1/3-...-1/2009)(1/2+1/3+1/4...+1/2010)-(1-1/2-1/3-... (-1*1/2) (-1/2*1/3) (-1/3*1/4) .(-1/2009*1/2010) (-1/2010*1/ (1-1/2)(1/3-1)(1-1/4)(1/5-1)``````(1/2009)(11/2010) ｜1/2-1｜+｜1/3-1/2｜+1/4-1/3｜+...｜1/2009-1/2008｜+｜1/2010-1/2009 计算(1-1/2)^2*(1-1/3)^2*(1-1/4)^2*...*(1-1/2009)^2*(1-1/2010)^ (-1)+-2+(-3)+4+(-5)+...+(-2009)+2010 |1/3-1/2|+|1/4-1/3|+...+|1/2010-1/2009| (2011/1-1)(2010/1-1)(2009/1-1)…(3/1-1)(2/1-1) (1/2010-1)*(1/2009-1)*(1/2008-1)*...*(1/3-1)*(1/2-1)