(1/2)+(1/4)+(1/8)+(1/16)+(1/23)+(1/64)
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
2\1+4\1+8\1+16\1+64\1+128\1+256\1+512\1
1+1/2+1/4+1/8+1/16+1/2+1/64
计算:1/2+1/4+1/8+1/16+1/64+1/128+1/256
简便计算1/2+1/4+1/8+1/16+1/32+1/64+1/128
1/2+1/4+1/8+1/16+32/1+1/128没有1/64简算
1--1/2-1/4-1/8-1/16-1/32-1/64怎么简便计算
1-1/2-1/4-1/8-1/16-1/32-1/64简便计算
1/2+1/4+1/8+1/16+1/32+1/64+1/128
求和:1/2+1/4+1/8+1/16+1/32+1/64+.+1/1024=?