1/2+1/4+1/8+1/16+...+1/1024
来源:百度知道 编辑:UC知道 时间:2024/09/20 07:09:37
写出过程
您好!
1/2+1/4+1/8+1/16+...+1/1024为一个等比数列的和,
Sn=[A1(1-q^n)]/(1-q)
=1/2(1-1/2^10) /1- 1/2
=1-1/2^10
=1023/1024
0.5*(1-0.5^10)/(1-0.5).....你到网上查查"等比数列"...会很详细的..
(1+1/2+1/3+1/4)×
1+1/2+1+1/3+1+1/4+......+1/100=?
1/1+1/2+1/3+1/4+。。。。+1/N 是多少
1/1+1/2+1/3+1/4+......1/2002=?
1-1/2+1/3-1/4+........1/99-1/100
(1-1/2)(1-1/3)(1-1/4)(1-1/5).....(1-1/1000)
(1/2) (1/4+1/6)=
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)
(1-1/2^2)*(1-1/3^2)*(1-1/4^2).......(1-1/100^2)
s=1/1+1/1!+1/2!+1/3!+1/4!+....+1/25!