Question

Escreva as sequência definida pelos termos gerais a seguir. (Considere n e N*)
A)an=5n
B)an=2n+1
C)an=n/n+1

Answer 1

a) an=5n
a1=5.1=5
a2=5.2=10
a3=5.3=15

(5,10,15,20,...)

b) an=2n+1
a1=2.1+1=2+1=3
a2= 2.2+1=4+1=5
a3= 2.3+1=6+1=7

(3,5,7,9,11,...)

c) an=n/n+1
a1=1/1+1= 1/2
a2=2/2+1=2/3
a3=3/3+1=3/4
a4= 4/4+1=4/5

(1/2, 2/3, 3/4, 4/5,...)