Question

Determine a razão da pg
A) (-2,-4,-8,...)

B) (1,-3,9,...)

C) (10,20,...)​

Answer 1

Resposta:

A) q = 2      B) q = -3     C) q = 2

Explicação passo-a-passo:

A) (-2,-4,-8,...)  => $q = \frac{a_{2} }{a_{1} } => q = \frac{-4_{} }{-2_{} } => q = 2$

B) (1,-3,9,...) => $q = \frac{a_{2} }{a_{1} } => q = \frac{-3_{} }{1_{} } => q = -3$

C) (10,20,...)​ = $q = \frac{a_{2} }{a_{1} } => q = \frac{20_{} }{10_{} } => q = 2$