1-√5/2,1+√5/2,1-√2,1+√2,( ),3+√13/2 {√表示根号}
A.1/(√13-3) B.2/(3+√13) C.-2/(3+√13) D.1/(3+√13)
3,3,9,15,33,( )
A.75 B.63 C.48 D.34
6,15,35,77,( )
A.106 B.117 C.136 D.163
2,8,24,64,( )
A.160 B.512 C.124 D.164
2,5,11,56,( )
A.126 B.617 C.112 D.92
15/2,24/5,35/10,48/7
A.63/26 B.53/24 C.53/22 D.63/28
1,3,3,6,7,12,15,( )
A.17 B.27 C.30 D.24
2,-1,-1/2,-1/4,1/8,( )
A.-1/10 B.-1/12 C.-1/16 D.-1/14
做自己研究出来了几题,现在还有如下2题实在不知,望高人指点
1-√5/2,1+√5/2,1-√2,1+√2,( ),3+√13/2 {√表示根号}
A.1/(√13-3) B.2/(3+√13) C.-2/(3+√13) D.1/(3+√13)
6,15,35,77,( )
A.106 B.117 C.136 D.163