发布网友 发布时间:2024-10-10 23:06
共2个回答
热心网友 时间:2024-10-10 23:19
没有哪个整数的平方是 1023。
32² = 1024
热心网友 时间:2024-10-10 23:19
设1/2+1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024=s
等式两边同乘以1/2得
1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024+1/2048=s/2
两式相减得:(1/2+1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024=s)-(1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024+1/2048=s/2)
=(s/2=1/2-1/2048)
=(s/2=1023/2048)
∴s=1023/1024.
不懂可以再问
热心网友 时间:2024-10-10 23:24
设1/2+1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024=s
等式两边同乘以1/2得
1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024+1/2048=s/2
两式相减得:(1/2+1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024=s)-(1/4+1/8+1/16+1/32+1/+1/128+1/256+1/512+1/1024+1/2048=s/2)
=(s/2=1/2-1/2048)
=(s/2=1023/2048)
∴s=1023/1024.
不懂可以再问
热心网友 时间:2024-10-10 23:25
没有哪个整数的平方是 1023。
32² = 1024