Question

Dada a PG (3,12,48,...),Caucule:
o 7° termo

Answer 1

Olá.

q = a2/a1
q = 12/3
q = 4

an = a1 . q^(n-1)
an = 3. 4^(7-1)
an = 3 . 4^(6)
an = 3 . 4.4.4.4.4.4
an = 3 . 16. 16 .16 
an = 3 . 256.16
an = 3 . 4096
an = 12288