Respuesta :

unicorn3125

Answer:

         [tex]\bold{a_n=7n-6}[/tex]

Step-by-step explanation:

a₁ = 1

a₂ = 8 = 1 + 7 = a₁ + 7

a₃ = 15 = 1 + 7 + 7 = a₁ + 7×2

a₄ = 22 = 1 + 7 + 7 + 7 = a₁ + 7×3

Therefore:

               [tex]a_n=1+7(n-1)=1+7n-7\\\\a_n=7n-6[/tex]