Respuesta :

09pqr4sT

Answer:

[tex]a_{n} = 4n+9[/tex]

Step-by-step explanation:

[tex]a_{n} = a_{1} +(n - 1)d[/tex]

[tex]a_{n} = 13 +(n - 1)4[/tex]

[tex]a_{n} = 13 +4n-4[/tex]

[tex]a_{n} = 4n+13-4[/tex]

[tex]a_{n} = 4n+9[/tex]

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