Question

01. Calcule a razão de cada P.A.

a) (1, 1, 5)
(3,   3)

b) (–2 , 0 , 2 , 4)

c) (√2, √2, √2, ...)

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Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo-a-passo:

a.

$\mathsf{ \dfrac{1}{3}, 1, \dfrac{5}{3}}$

$\sf r = 1 - \dfrac{1}{3} = \dfrac{3-1}{3} = \dfrac{2}{3}$

b.

$\mathsf{-2,0,2,4}$

$\sf r = 0 -(-2) = 0 + 2 = 2$

c.

$\mathsf{\sqrt{2},\sqrt{2},\sqrt{2}}$

$\sf r = \sqrt{2} - \sqrt{2} = 0$

Answer 2

Explicação passo-a-passo:

1)

a)

$\sf r=a_2-a_1$

$\sf r=1-\dfrac{1}{3}$

$\sf \red{r=\dfrac{2}{3}}$

b)

$\sf r=a_2-a_1$

$\sf r=0-(-2)$

$\sf r=0+2$

$\sf \red{r=2}$

$\sf r=a_2-a_1$

$\sf r=\sqrt{2}-\sqrt{2}$

$\sf \red{r=0}$