巧算(奥数题)问:(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×...(1+1/99)×(1-1/99)
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/20 10:35:22
x){}uxt鳩^.~O467
0E ee ===%,gTBl/ T[
)Z`HXSQ2 Ұ
(QLAl<;P (
巧算(奥数题)问:(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×...(1+1/99)×(1-1/99)
巧算(奥数题)
问:(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×...(1+1/99)×(1-1/99)
巧算(奥数题)问:(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×...(1+1/99)×(1-1/99)
(1+1/2)×(1-1/2)×(1+1/3)×(1-1/3)×...(1+1/99)×(1-1/99)
=(1/2)*(3/2)*(2/3)*……*(98/99)*(100/99)
=(1/2)*(100/99)
=50/99