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# Nth term of an arithmetic or geometric sequence

The main purpose of this calculator is to find expression for the nth term of a given sequence. Also, it can identify if the sequence is arithmetic or geometric. The calculator will generate all the work with detailed explanation.

Nth term of an arithmetic and geometric sequence
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2, 3, 9/2, 27/4
2n + 1/n
 Find expression for the nth term (default) Identify sequence Find next term
 Find first terms Find th term
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examples
example 1:ex 1:
Determine if a sequence is arithmetic or geometric : $1, 2, 4, 8, ...$.
example 2:ex 2:
What is the next term in the following sequence : $1, 5, 9, 13, ...$
example 3:ex 3:
What is the value of x? $$\frac{2}{3}, 1, \frac{3}{2}, \frac{9}{4}, x$$
example 4:ex 4:
What is the $n^{th}$ term of the sequence? $$2, 6, 10, 14, 18, ...$$
example 5:ex 5:
Find the general expression for the arithmetic sequence? $$\frac{5}{2}, 5, 10, 20, . . .$$
example 6:ex 6:
Find the first five terms of the sequence where $a_n = 2 n^2 - \dfrac{1}{n}$.

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