Respuesta :

mhanifa

Answer:

  • a(n) = -3*5^(n-1)

Step-by-step explanation:

Given sequence

  • -3, -15, -75, -375, ...

This is a GP with

  • The first term = -3
  • Common ratio = 5

Formula for nth term is:

  • a(n) = -3*5^(n-1)