Question

Escreva o termo das sequencias
a) (3, 5, 7, 9, ...)
b) (2, 4, 6, 8, ...)

Answer 1

Resposta:

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

b) (2, 4, 6, 8, 10)

Espero ter ajudado :)

Answer 2

a) r = a2 - a1

r = 5 - 3

r = 2

an = a1 + ( n -1) . r

an = 3 + ( n -1) . 2

an = 3 + 2n - 2

an = 1 + 2n  (Termo geral)

b)r = 4-2 = 6-4 = 8-6 = 2.

a1 = 2.

r = 2.

an = a1 + (n-1)*r

an = 2 + (n-1)*2

an = 2 + 2n - 2

an = 2n