Question

determine os cinco primeiros termos da sequência definida pela fórmula: an=n2-3,n € N*;​

Answer 1

$\boxed{a_n~=~n^2-3}\\\\\\\rightarrow~~a_1~=~1^2-3~=~1-3~~\rightarrow~~\boxed{a_1~=~-2}\\\\\\\rightarrow~~a_2~=~2^2-3~=~4-3~~\rightarrow~~\boxed{a_2~=~1}\\\\\\\rightarrow~~a_3~=~3^2-3~=~9-3~~\rightarrow~~\boxed{a_3~=~6}\\\\\\\rightarrow~~a_4~=~4^2-3~=~16-3~~\rightarrow~~\boxed{a_4~=~13}\\\\\\\rightarrow~~a_5~=~5^2-3~=~25-3~~\rightarrow~~\boxed{a_5~=~22}$