您好：(1+1/2)*(1—1/2)*(1+1/3)*(1—1/3)……*(1+1/100)*(1-1/100)=1/2x3/2x2/3x4/3x...x.99/100x101/100=1/2x101/100=101/200不明白，可以追问如有帮助，记得采纳，谢谢祝学习进步！
)*(1—1/2)*(1+1/3)*(1—1/3)……*(
