7/13、5/13 和7/12怎么找规律
1,1,3,7,13,( ),31,( )怎么找规律?
找规律 3^2=4+5,5^2=12+13,7^2=24+25,求规律,和证明方法
找规律填数:2,3,7,18,47,( )和1,2,5,13,34,( )
-1 7 -13 19 找规律
找规律7,8,10,13,18,[ ],[ ]
找规律.1,3,7,13,( ),31,( ).
3,5,7,12,19找规律
找规律 1,6,7,12,13,17,18,()
找规律1 2 3 6 7 12 13 ...
找规律 1 3 5 5 9 7 13 ( )
2,3,5,7,11,13找规律
5 10 13 7 ( ) 17 9 18 21 ( )找规律