1,3,7,15 ( ) ( )127 .... 规律15,31,63( ) .255 规律
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1,3,7,15 ( ) ( )127 .... 规律15,31,63( ) .255 规律
1,3,7,15 ( ) ( )127 .... 规律
15,31,63( ) .255 规律
1,3,7,15 ( ) ( )127 .... 规律15,31,63( ) .255 规律
31,63
1,3,7,15,31,63,127
1 = 2 - 1
3 = 2^2 - 1
7 = 2^3 - 1
15 = 2^4 - 1
……
127 = 2^7 - 1
3,7,15,31,63,127,255
规律和上面一样,都是2的次方减1
1,3,7,15,(31),(63),127...他们之间是2,4,8,16,32,64的关系,自己算算吧~~呵呵
1 3 7 15 ( )( )127
1,3,7,15,( ),( ),127
找规律:1,3,7,15,31,( ),127,255.
1 3 7 15 ( ) ( ) 1271 3 7 15 ( ) ( ) 127 找规律
1,3,7,15 ( ) ( )127 .... 规律15,31,63( ) .255 规律
找规律填数:1,3,7,15,31,( ),127,255.
1,3,7,15,31,(),127找规律添数,
按规律填数1,3,7,15,31,( ),127,( ).
找规律填数1,3,7,15,31,()127,
明天要交的1,3,7,15,31,( ),127括号里填什么啊?
1 3 7 15 31 63 127的规律是什么
2,3,5,8,13,21,( ) 1,4,9,16,( ) ,() 1,3,7,15,31,(),127,255,
一个数学题找规律1、3、5、7、15()()127,括号里面的数字应该是多少?,
1,3,7,15,31()127,255按规律填数,怎么给孩子讲解明白
2/1+4/3+8/7+16/15+32/31+64/63+.+128/127
1/2+3/4+7/8+15/16+31/32+63/64+127/128的答案
1/2+3/4+7/8+15/16+31/32+63/64=127/128=?
1 3 7 15 31 63 127的通项公式