tell whether the following sequence is geometric or not. If geometric find r

hi can someone please answer my question i really need the complete step-by-step solution. thank you ❤️​

tell whether the following sequence is geometric or not If geometric find rhi can someone please answer my question i really need the complete stepbystep soluti class=

Respuesta :

Answer:

this sequence is geometrical sequence

and it's formula is

[tex]y = a {r}^{n} \\ here \: a \: is \: first \: number \: is \: equal \: 1 \\ and \: the \: ratio \: is \: r \: is \: equal \: - 3 \\ y = 1 \times {( - 3)}^{n} [/tex]