Question

oi, me ajudem, por favor!!!

Answer 1

n! × 3^(n+1)/3^(n-2) × (n+2)!

n! × 3^(n+1)/3^(n-2) ×(n+2)(n+1)n!

3^(n+1)/3^(n-2) ×(n²+3n+2)

3^(n+1-(n-2))/n²+3n+2

[27/n²+3n+2]<=== resposta

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