题目内容
数列5,9,17,33,x,…中的x等于 ( )
A.47 B.65
C.63 D.128
B
(1)-3,0,3,6,9;
(2)3,5,9,17,33;
(3)4,-4,4,-4,4;
(4)1,0,1,0,1;
(5),,-,;
(6)9,99,999,9 999.
(1)1,-1,1,-1,…;
(2)3,5,9,17,33,…;
(3),2,,8,,…;
(4)1,0,-,0,,0,-,0,….
(1)3,5,9,17,33,…;
(2),,,,,…;
(3)2,-6,12,-20,30,-42,….