1/2+1/4+1/8+1/16+...+1/1024

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/30 12:05:15
1/2+1/4+1/8+1/16+...+1/1024
x)3767b 641 LlPd“hxcOy6uӎg<ԣgha[bh*e 4{z8CM}C] !002 10@T h>aj vlxw]/"%d+t_Nj˞nz@O (z

1/2+1/4+1/8+1/16+...+1/1024
1/2+1/4+1/8+1/16+...+1/1024

1/2+1/4+1/8+1/16+...+1/1024
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..