1 2 4 8 32 256 ( )
1-2-2-4-8-32-256-( ) 找规律
找规律 1,2,2,4,8,32,256,( )
找规律:1,2,4,8,32,256
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+4/2+8/3+16/4+32/5+64/6+128/7+256/8
1-1/2-1/4-1/8-1/16-1/32-.1/256
计算:1/2+1/4+1/8+1/16+1/32+...+1/256 等于多少,
1/2+1/4+1/8+1/16+1/32+...+1/256简便运算
1+2+4+8+16+32+64+128+256……加64次等于几 1+2+4+8+16+32+64+128+256……
1+1?2+2?4+4?8+8?16+16?32+32 64+64 128+128 256+256 512+512 10