王家卫拍摄手法:1+1/1+2+1/1+2+3+......+1/1+2+3+......+10
来源:百度文库 编辑:中科新闻网 时间:2024/05/11 18:27:24
原式=1+1/[(1+2)*2/2]+1/[(1+3)*3/2]+…+1/[(1+10)*10/2]
=2*[1/(1*2)+1/(2*3)+1/(3*4)+…+1/(10*11)]
=2*(1-1/2+1/2-1/3+1/3-1/4+…+1/10-1/11)
=2*(1-1/11)
=20/11
(1/2005-1)(1/2004-1)........(1/3-1)(1/2-1)
1+1/1+2/=??
1+1/(1+2)+1/(1+2+3)+...+1/(1+2+3+...+100)
1+1/1+2+1/1+2+3+......+1/1+2+3+......+10
1/1+1/2+1/3+1/4+。。。。+1/N 是多少
(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)怎么做
lim[(1-1/4)(1-1/9)...(1-1/(n+1)^2]=?
s=1/1+1/1!+1/2!+1/3!+1/4!+....+1/25!
(1-1/2^2)(1-1/3^2)....(1-1/10^2)