Question

Exercícios- Determine a razão das seguintes PG

A) ( 3,9,27,81) _________

B) ( 2, -6 , 18, -54) _________

C) (20, 10, 5 , 5/2) __________

D) (3,3,3,3,3,3,...) ___________

E) ( -4, -20, -100, ... ) _________​

Answer 1

Resposta:

Explicação passo-a-passo:

Razão = a2 / a1

A) ( 3,9,27,81) _________

9/3 = 3

B) ( 2, -6 , 18, -54) _________

-6/2 = -3

C) (20, 10, 5 , 5/2) __________

10/20 = 1/2 ou 0,5

D) (3,3,3,3,3,3,...) ___________

3/3 = 1

E) ( -4, -20, -100, ... ) _________​

-20/-4 = 5