Question

What is the 11th term of the geometric sequence –1, 3, –9, …?

Answer 1

`-3^{10}`

Explanation:

The common ratio is `-3`.

The `n^{th}` term of the sequence is `frac{(-3)^n}{3}`.

The `11^{th}` term of the sequence is `frac{(-3)^11}{3}=-3^{10}`.