Question

Determine o sexto termo da P.G(5,15,45,...)

Answer 1

$\boxed{\mathsf{q=\frac{a_{n}}{a_{(n-1)}}}}$

15/5 = 3

$\boxed{\mathsf{A_{n}=a_{m}\cdotq^{(n-m)}}}$

a₆ = 5 * (3)⁽⁶⁻¹⁾

a₆ = 5 * 3⁵

a₆ = 5 * 243

a₆ = 1215