Question

determine o 12° termo da pg (1024,512...)

Answer 1

an = a1 . q^n-1

q = 512/1024 = 1/2

a12 = 1024 . (1/2)^11
a12 = 1024. 1/2048 = 1/2

Answer 2

A1 = 1024
q= 1/2
A12= ?

A12 = a1 * ( 1/2) 11
A12 = 1024 * 1 / 2048
A12 = 1024 / 2048 ( Simplificando)
A12 = 1 /2