1003107305

SubArea: 
Introduction to sequences
Level: 
B
Project ID: 
1003107305
Source Problem: 
1003107306
Accepted: 
1
Clonable: 
1
Easy: 
1
We are given a sequence \( \left( a_n \right)^{\infty}_{n=1} \) defined recursively by: \( a_1=5\,;\ a_{n+1}=a_n+4,\ n\in\mathbb{N} \). Find the \( n \)th term of this sequence.
\( a_n=4n+1,\ n\in\mathbb{N} \)
\( a_n=4n-1,\ n\in\mathbb{N} \)
\( a_n=4n,\ n\in\mathbb{N} \)
\( a_n=5n,\ n\in\mathbb{N} \)