1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/05 04:14:40
![1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048](/uploads/image/z/186155-35-5.jpg?t=1-1%2F2%2B1%2F4-1%2F8%2B1%2F16-1%2F32%2B1%2F64-1%2F128%2B1%2F256-1%2F512%2B1%2F1024-1%2F2048)
xŏ 0ױ|)^$PL?Tׄ,ЇH!ѱ@t$uA 5f#(
i ?а8J7ûKᒽSX{ܟ~ _L%
1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048
1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048
1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048
1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048=1-(-1/2)^12/(1+1/2)
=2/3[1-(1/2)^12]
=(2/3)*(4095)4096
=4095/3*2048
=1365/2048