1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/265
问题描述:
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/265
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/265 规律
答
1-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64+1-1/128+1-1/256=8-(1-1/2561-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64+1-1/128+1-1/256=8-(1-1/256)=7+1/256=