Question

What is $n^{th}$ term?

Answer 1

The $n^{th}$ term is a formula used to find any term of a sequence, where $n$ stands for the term number.

Formulas:

1. For $n^{th}$ term of an arithmetic sequence: $a_n=a+\left(n-1\right)d$ , where $a$ is the first term and $d$ is a common difference.
2. For $n^{th}$ term of a geometric sequence: $a_n=a{r}^{n-1}$ , where $a$ is the first term and $r$ is a common ratio.
3. For $n^{th}$ term of a harmonic sequence: $a_n=\frac{1}{a+\left(n-1\right)d}$ , where $a$ is the first term and $d$ is a common difference.