34+17+8 1/2+7 1/4+6 1/8+5 1/16+4 1/32+3 1/64+2 1/128+1 1/256

2/1+4/2+8/3+16/4+32/5+64/6+128/7+256/8 1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256 1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256 1/2-1/4-1/8-16/1-32/1-64/1-128/1-256/1 1又1\2+2又1\4+3又1\8+4又1\16+5又1\32+6又1\64+7又1\128+8又1\256+9又1\5 计算： 1/32+1/64+1/128+256 1/2+1/4+1/8+1/16+1/32+1/64 1/5+1/10+ 1-(1/2)-(1/4)-(1/8)-(1/16)-(1/32)-(1/64)-(1/128)-(1/256) 1-1/2-4/1-1/8-1/16-1/32-1/64-1/128-1/256等于多少? 1-（1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256）等于（ ）. 1+1/2+1/4+1/8-1/16+1/32+1/64-1/128+1/256=?简便运算 1-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256 要过程 急! 1+1/2+1/4+1/8-1/16+1/32+1/64-1/128+1/256