若|mn-2|+(m-1)的平方0,求-1/mn-1/(m+1)(n+1)-1/(m+2)(n+2)-……-1/(m+2009)(n+2009)

问题描述:

若|mn-2|+(m-1)的平方0,求-1/mn-1/(m+1)(n+1)-1/(m+2)(n+2)-……-1/(m+2009)(n+2009)