1/2+1/4+1/8+1/16+……+1/1024+1/2048=?

2/1+4/1+8/1+16/1+32/1……+1024/1= 计算：1/2+1/4+1/8+1/16+………+1/1024 1+1+2+4+8+16+32+64+128+256+512+1024+2048+4096=? 1/2+1/4+1/8+1/16+1/32……+1/1024 1.1/2+1/4+1/8+1/16+1/32+1/64+……+1/512+1/1024= 有没有什么公式例如“1+1=2,2+2=4,4+4=8,8+8=16,1024+1024=2048…”等计算下去 1/4+1/8+1/16+1/32+……+1/1024=? 1/2+1/4+1/8+1/1/16+.+1/312+1/1024+1/2048 简便计算 1+2+4+8+16+……+1024等于几? 1-1/2-1/4-1/8-1/16-1/32-1/64……-1/1024 1/2加1/4加1/8加1/16加...加1/1024加1/2048等于多少 1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048