Question

Alguém sabe a resposta da 7?

Answer 1

$\dfrac{2 ^n^+^4 + 2 ^n^+^2 + 2 ^n^-^1}{2 ^n^-^2 + 2 ^n^-^1} \\ \\ \\ \dfrac{5*2^n^+^2 + 2 ^n^-^1}{3*2 ^n^-^2} \\ \\ \\ \dfrac{41*2^n \not ^+^1 }{3* \not2 ^n\not ^-^2} \\ \\ \\ \dfrac{42*2}{3} \\ \\ \\ => \dfrac{82}{3}$


Resposta letra d) $\dfrac{82}{3}$