(1+1⼀2)*(1+1⼀3)*(1+1⼀4)*(1+1⼀5)*(1+1⼀6)*(1+1⼀7)*...(1+1⼀99)

2024-12-29 02:04:28
推荐回答(1个)
回答1:

3/2x4/3x5/4x....x100/99
前者分子跟后者分母对消,消到最后剩下1/2跟100/1!
ans:100/2=50