Question

dada a sequência (1,3,5,7,9,.....)qual o primeiro termo e a razão dessa P.A​

Answer 1

Resposta:

$\red{ \boxed{</strong><strong>\</strong><strong>b</strong><strong>o</strong><strong>x</strong><strong>e</strong><strong>d</strong><strong>{</strong><strong> </strong><strong>a_</strong><strong>{1} = 1 }}</strong><strong>}</strong><strong>\\ \red{ \boxed{</strong><strong>\</strong><strong>b</strong><strong>o</strong><strong>x</strong><strong>e</strong><strong>d</strong><strong>{</strong><strong> r = 2}</strong><strong>}</strong><strong>}$

Explicação passo-a-passo:

$\red{ \boxed{ \boxed{primeiro \: termo \: = </strong><strong>a_</strong><strong>{1}\: </strong><strong>=</strong><strong>=</strong><strong>></strong><strong> = 1 }}}\\ \\ razão \: </strong><strong>(</strong><strong>r</strong><strong> </strong><strong>)</strong><strong>= </strong><strong>a_</strong><strong>{2} \: - \: </strong><strong>a_</strong><strong>{1} \\ r = 3 \: - \: 1 \\ \red{ \boxed { \boxed{ { r \: = \: 2}}}}$

espero ter ajudado :)