Question

Determine a soma dos termos da pg (4, -2, 1, -1/2,...)

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo-a-passo:

$\mathsf{S_n = \dfrac{a_1}{1 - q}}$

$\mathsf{S_n = \dfrac{4}{1 - (-\dfrac{1}{2})}}$

$\mathsf{S_n = \dfrac{4}{1 + \dfrac{1}{2}}}$

$\mathsf{S_n = \dfrac{4}{\dfrac{3}{2}}}$

$\boxed{\boxed{\mathsf{S_n = \dfrac{8}{3}}}}$