1 2 4 8 16 32 64怎么算

1 2 4 8 16 32 64怎么算 64+32+16+8+4+2+1怎么计算 1+2+4+8+16+32+...+1024怎么算? 1/2+1/4+1/8+1/16+1/32+1/64 这道题怎么巧算? 1/2+1/4+1/8+1/16+1/32+1/64怎么算 1+2+4+8+16+32+64+128快速算怎么算 4 16 8 64 32 1024 () 数列怎么算? 4 16 8 64 32 1024 () 该数列怎么算 4 2-1怎么算等于8 -1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256怎么简算? 1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256怎么算? 1--1/2-1/4-1/8-1/16-1/32-1/64怎么简便计算