Respuesta :

osikbro

Answer:

18

Step-by-step explanation:

Plugging in 3 for n, we get:

[tex]t_n=2(3)^{3-1} \\\\t_n=2(3)^2 \\\\t_n=2(9) \\\\t_n=18[/tex]

Hope this helps!

xinyiz
n = 3
t3 = 2(3)^3-1
t3 = 2 x 3^2
t3 = 2 x 9
t3 = 18