Question

Write an explicit formula for each sequence.12. 2,4,6,8

Answer 1

ANSWER

$a_n=2n\text{ , }n\in\N$

EXPLANATION

Each term of this sequence is the result of multiplying the place by 2:

2 = 1*2

4 = 2*2

6 = 3*2

8 = 4*2

A formula for this sequence is:

$\begin{gathered} a_n=2n \\ n\in\N \end{gathered}$