Question

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 ❤️​

Answer 1

this sequence is geometrical sequence

and it's formula is

`y = a {r}^(n) \\ here \: a \: is \: first \: number \: is \: equal \: 1 \\ and \: the \: ratio \: is \: r \: is \: equal \: - 3 \\ y = 1 * {( - 3)}^(n)`