Question

dada a pg (2,4,...) cacule o 11 termo

Answer 1

dada a pg (2,4,...) cacule o 11 termo

R = A2 ÷ A1
R = 4 ÷ 2
R = 2

Agora , vamos calcular o 11° termo

A11 = A1 * Q^10
A11 = 2 * 2^10
A11 = 2 * 1024
A11 = 2048

PG = {2,4,8,16,32,64,128,256,512,1024,2048}

$\textbf{\displaystyle\large{RESPOSTA : ~~A11 = 2048}}$

Answer 2

Boa tarde

PG 

u1 = 2
u2 = 4 

q = u2/u1 = 4/2 = 2 

termo geral 
un = u1"q^(n - 1)

un = 2"2^10 = 2^11 = 2048