Question

Determine a razão e classifique as PA em crescente, decrescente ou constante.
a) ( 4, 8, 12, 16, 20,...)
b) (1, 2, 3, 4, ...)
c) ( 7, 7, 7,...)
d) ( 13, 10, 7, ...)
e) ( 5, 9, 13, 17, 21, ...)

Answer 1

• Crescente => a(n + 1) > an

• Decrescente => a(n + 1) < an

• Constante => a(n + 1) = an

a) 8 > 4

b) 2 > 1

c) 7 = 7

d) 10 < 13

e) 9 > 5

Resposta:

a) Crescente

b) Crescente

c) Constante

d) Decrescente

e) Crescente