(1/(1+√2)+1/(√2+√3)+...+1/(√2002+2003)(1+√2003)=【√2-1+√3-√2+……+√2003-√2002】(1+√2003)=(√2003 -1)×(1+√2003)=2003-1=2002
呃 答案为2002
(√2-1)(√2+1)=1,(√3-√2)(√3+√2)... 利用上述规律运算: (1/(1+√2)+1/(√2+√3)+...+1/(√2002+2003)(1+√2003)的值