1-1/2-1/4-1/8-……-1/128=?用简便方法计算

1/2+1/4+1/8……+1/256 1/2+1/4+1/8+……+1/1024 1/2-(1/2-1/4)-(1/4-1/8)-……-(1/8192-1/16384) 计算 (1+1/2)×(1+1/3)×(1+1/4)×……×(1+1/7)×(1+1/8)×计算 (1+1/2)×(1+1/3)×(1+1/4)×……×(1+1/7)×(1+1/8)×(1+1/9) (2+1)(2^2+1)(2^4+1)(2^8+1)……(2^1024+1) 1/2+1/4+1/8……+1/256+1/512+1/1024 简便计算, 2/1+4/1+8/1+16/1+32/1……+1024/1= 1/2+1/4+1/8+1/16+……+1/1024+1/2048=? 1/2+1/4+1/8=1/16+1/32+……+1/1024+2048 1/2+1/4+1/8+1/16+……+1/1024+1/2048=?] 1/2+1/4+1/8+1//16+1/32……1//128 计算:1/2-(1/2-1/4)-(1/4-1/8)-…-1/512-1/1024) 1／2+1／4+1／8+1／16+……+1／2n的值 1/2+1/4+1/8+……1/2n=1n等于无限大 |1/4-1/2|+|1/6-1/4|+|1/8-1/6|+……+|1/2008-1/2006|是多少 1/2+1/4+1/8+1/16+1/32+……+1/1024+1/2048+1/2^n 1/n+1/n2+1/n3……=1/n-1吗?就是1/2+1/4+1/8+……=1/1证明其他正整数 简便计算：1-1/2-1/4-1/8-1/16-1/32-…-1/1024