Question

escreva a sequência cujo termo geral é An= 2n - 1

Answer 1

A1=2(1)-1=2-1=1
A2=2(2)-1=4-1=3
A3=2(3)-1=6-1=5

(1,3,5,...)

Answer 2

An= 2n - 1

n=1==> A1= 2.1 -1==>A1= 2-1==>A1= 1
n=2==> A1= 2.2 -1==>A1= 4-1==>A1= 3
n=3==> A1= 2.3 -1==>A1= 6-1==>A1= 5
n=4==> A1= 2.4 -1==>A1= 8-1==>A1= 7
n=5==> A1= 2.5 -1==>A1= 10-1==>A1= 9

(1,3,5,7,9,........)