100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-/50)100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-1/50)
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/06 12:50:28
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100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-/50)100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-1/50)
100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-/50)
100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-1/50)
100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-/50)100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-1/50)
100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-/50)
=100×(2/3)×(3/4)×(4/5)×...(49/50)
=100×(2×3×4×...×49)/(3×4×...×49×50)
=100×2/50
=4
100×(1- 1/3)×(1-1/4)×(1-1/5)×...(1-/50)
=100*2/3*3/4*4/5*49/50
=100*2*1/50
=4