设M=1/(1+√2)+1/(√2+√3)+1/(√3+√4)+…+1/(√2011+√2012),N=1-2+3-4+5-6+…+2011-2012,求N/（M+1）²的值

设m^2+m-1=0,则-m^3-2m^2+1=___ 设m^2+m-1=0,则m^3+2m^2+99=? 设m^2+m=1,则m^3+2m^2+2007=? 设m^2+m=1,求m^3+2m^2+2009的值. 设m^2+m-1=0,求m^3+2m^2+2007的值 设m^2+m-1=0,求m^3+2m^2+2005的值 设m^2 + m =1,求m^3 + 2m^2 +2005的值 设m^2+m-1=0,求m^3+2m+2010的值 设m²+m-1=0,求m^3+2m²+2009的值, 设m²+m-1=0,求m³+2m²+3的值 设抛物线y=[m-1]x^2-√5m^2-5m ×x+m-1 若抛物线顶点在x轴上,求m的值 设集合a={m,2m,3m},b={x/1 设抛物线y=[m-1]x^2-√5m^2-5m ×x+m-1若抛物线顶点在x轴上求x的值设抛物线y=[m-1]x^2-√5m^2-5m ×x+m-1若抛物线顶点在x轴上求m的值 设m平方+m=1则m立方+2m平方+2007=? 设m²+m-1=0,则m³+2m²+1997= 设m²+m=1,求m³+2m²+2009的值 设m²+m=1 求m³+2m²+2005的值 设m方加m=1,求m立方+2m方+2010的值