Question

1. Dada a sequência definida por an=4n - 1, calcule os 6 primeiros elementos.

Answer 1

$\boxed{a_n=4n-1}$

$a_1=4*1-1\\ \\\boxed{a_1=3}\\ \\a_2=4*2-1\\ \\\boxed{a_2=7}\\ \\a_3=4*3-1\\ \\\boxed{a_3=11}\\ \\a_4=4*4-1\\ \\\boxed{a_4=15}\\ \\a_5=4*5-1\\ \\\boxed{a_5=19}\\ \\a_6=4*6-1\\ \\\boxed{a_6=23}$