(1/100-1)*(1/99-1)*(1/98-1)*···(1/3-1)*(1/2-1)怎么解?
问题描述:
(1/100-1)*(1/99-1)*(1/98-1)*···(1/3-1)*(1/2-1)怎么解?
答
-99/100*98/99*97/96*...*2/3*1/2 =-1/100
(1/100-1)*(1/99-1)*(1/98-1)*···(1/3-1)*(1/2-1)怎么解?
-99/100*98/99*97/96*...*2/3*1/2 =-1/100