Respuesta:
b) 42
Explicación paso a paso:
n= número de termino
[tex]a_{n} = a_{1} + d(n - 1)[/tex]
[tex]d = 28 - 13 = 15[/tex]
sustituyendo
[tex]628 = 13 + 15( n - 1)[/tex]
[tex]628 = 13 + 15n - 15[/tex]
[tex]628 = - 2 + 15n[/tex]
[tex]628 + 2 = 15n[/tex]
[tex]630 = 15n[/tex]
[tex] \frac{630}{15} = n[/tex]
[tex]42 = n[/tex]
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Respuesta:
b) 42
Explicación paso a paso:
n= número de termino
[tex]a_{n} = a_{1} + d(n - 1)[/tex]
[tex]d = 28 - 13 = 15[/tex]
sustituyendo
[tex]628 = 13 + 15( n - 1)[/tex]
[tex]628 = 13 + 15n - 15[/tex]
[tex]628 = - 2 + 15n[/tex]
[tex]628 + 2 = 15n[/tex]
[tex]630 = 15n[/tex]
[tex] \frac{630}{15} = n[/tex]
[tex]42 = n[/tex]