解应该是(1-1/2²)(1-1/3²)……(1-1/2003²)这个吧(1-1/2²)=(1-1/2)(1+1/2)=1/2×3/2(1-1/3²)=(1-1/3)(1+1/3)=2/3×4/3(1-1/4²)=(1-1/4)(1+1/4)=3/4×5/4………………………………原式=...你太厉害了!赞！！！！满意就采纳勒