1/2-1/4-1/8-16/1-32/1-64/1-128/1-256/1
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-(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
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512
1-2/1-4/1-8/1-16/1-32/1-64/1-128/1-256/1等于多少
1-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256