Question

A certain arithmetic sequence has this explicit formula for the nth term:

Answer 1

Answer:

4

Step-by-step explanation:

The n th term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given

$a_{n}$ = 11 +(n - 1)4 , then

d = 4

The recursive formula allows a term in the sequence to be found by adding d to the previous term, thus

$a_{n}$ = $a_{n-1}$ + 4