Question

Determine o 15 termo da p.g (1,3,4,8)

Answer 1

Q = a₂/a₁
Q = 2

$A_{n} = a_{1} . Q^{(n -1)}$

a15 = 1 . 2⁽¹⁵ ⁻¹⁾
a15 = 2¹⁴
a15 = 16384