Question

03 - O 7° Termo da PG (-31250, -6250, -250, ...) será? *
-50
-25
-10
-2 ​

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{a_n = a_1.q^{n - 1}}$

$\mathsf{a_7 = -31.250.\left(\dfrac{1}{5}\right)^{7 - 1}}$

$\mathsf{a_7 = -2.5^6.5^{-6}}$

$\mathsf{a_7 = -2.5^{6-6}}$

$\mathsf{a_7 = -2.5^{0}}$

$\mathsf{a_7 = -2.1}$

$\boxed{\boxed{\mathsf{a_7 = -2}}}$