(1-1/2)(1-1/3)(1-1/4).(1-1/100)
200*(1-1/2)*(1-1/3)*(1-1/4)*.*(1-1/100)
(1-1/100)(1-1/99)(1-1/98)...(1-1/4)(1-1/3)(1-1/2)
100/1-1)(99/1-1)(98/1-1)…(4/1-1)(3/1-1)(2分之1-1)
(1/100-1)(1/99-1)(1/98-1).(1/4-1)(1/3-1)(1/2-1)等于多少?
(1-1/2)*(1-1/3)*(1-1/4)*……*(1-1/100)
1-1/2+1/3-1/4+1/5-1/6…+1/99-1/100)/(1/51+1/52+1/53+…+1/99+1/
计算 ( 1+1/2)*(1-1/3)*(1+1/4)*(1-1/5)*.*(1+1/1000)*(1-1/1001)
(1-1/2)(1-1/3)(1-1/4).(1-1/99)(1-1/100)等于?
计算;(1+1/1*3)*(1+1/2*4)*(1+1/3*5)*.*(1+1/98*100)*(1+1/99*101)
(1+1/2)*(1+1/4)*(1+1/6)*...*(1+1/2008)*(1-1/3)*(1-1/5)*(1-1/
(1):1/1*2+1/2*3+1/3*4+1/4*5+.1/99*100=?
一道奥数题,急救!(1+1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/