1/2+3/4+7/8+...+63/64
1/2,3/4,7/8,15/16,( ),63/64
1/2+3/4+7/8+...+63/64
1+1/2+3/4+7/8+15/10+31/32+63/64简便算法
简算:1/2+3/4+7/8+15./16+31/32+63/64
1/2+3/4+7/8+15/16+31/32+63/64+128/127+255/256
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
简算1/2+3/4+7/8+15/16+31/32+63/64
2/1+4/3+8/7+16/15+32/31+64/63+.+128/127
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/16+31/32+63/64=127/128=?
简便计算:1/2+3/4+7/8+15/16+31/32+63/64+127+218
简便计算:1/2+3/4+7/8+15/16+31/32+63/64+127/218