2010000707

SubArea: 
Introduction to sequences
Level: 
B
Project ID: 
2010000707
Source Problem: 
2010000706
Accepted: 
0
Clonable: 
1
Easy: 
1
We are given a sequence (an)n=16 defined by the following graph. Find the recursive formula of such sequence.
a1=2, an+1=−an, n∈{1;2;3;4;5}
a1=−2, an+1=−an, n∈{1;2;3;4;5}
a1=−2, an+1=−2an, n∈{1;2;3;4;5}
a1=2, an+1=an, n∈{1;2;3;4;5}