Question

Which of the following is an example of a recursive sequence?

2, 5, 8, 11, ...
1, 3, 9, 27, ...
2, 4, 6, 10, ...

Answer 1

Are you missing some info? Because a recursive sequence can also be arithmetic. Not just geometric :P

Answer 2

The first is
\[
a_1=2\\
a_n=a_{n-1}+3
\]

Answer 3

??? @eliassaab

Answer 4

5= 2+3
8=5+3;
11=8+3
What is your ????

Answer 5

How do you know what a_1 is O.o

Answer 6

@eliassaab
is it the 1st one??

Answer 7

Yes it is the first one. By the way, why are you blocking me?

Answer 8

I would never ♥ ... 1 can also be a_1 >.>