Question

determine o termo geral do pg (10,20,...) e calcule o 6=termo

Answer 1

P.G.(10,20,....)
q = a 2 / a 1
q = 20/10
q = 2
a n = a 1 . q ^n - 1
a n = 10 . 2 ^n - 1

a 6 = a 1 . q^n - 1
a 6 = 10 . 2^6 - 1
a 6 = 10 . 2^5
a 6 = 10 . 32
a 6 = 320