Respuesta :

Answer:

[tex]\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}[/tex]

Explanation:

Sequence: 1, 5, 9, 13

  • Add(ing) 4 every time

[tex]\bold{a(1) \ = \ 1}[/tex]

[tex]\bold{\bold{a(n) \ = \ a(n \ + \ 1) \ + \ 4}}[/tex]

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