应该是这道题吧
(1+1/2)×1-1/2)×(1+1/3)×(1-1/3)×(1+1/4)×.×(1+1/100)×(1-1/100)
=3/2×1/2×4/3×2/3×5/4×.×101/100×99/100
=1/2×101/100
=101/200
应该是这道题吧
(1+1/2)×1-1/2)×(1+1/3)×(1-1/3)×(1+1/4)×.×(1+1/100)×(1-1/100)
=3/2×1/2×4/3×2/3×5/4×.×101/100×99/100
=1/2×101/100
=101/200