Geometric Sequences and Series

How Do You Determine if a Sequence is Arithmetic or Geometric?

You have a pattern in your sequence. Great! Think it might be an arithmetic or geometric sequence? If the sequence has a common difference, it's arithmetic. If it's got a common ratio, you can bet it's geometric. Practice identifying both of these sequences by watching this tutorial!
How Do You Write a Rule for a Geometric Sequence?

Trying to find the value of a certain term in a geometric sequence? Use the formula for finding the nth term in a geometric sequence to write a rule. Then use that rule to find the value of each term you want! This tutorial takes you through it step-by-step.
What is the Explicit Formula for the nth Term in a Geometric Sequence?

Trying to find the value of a certain term in a geometric sequence? Don't want to go through the terms one-by-one to find the one you want? Use the formula to find the nth term in a geometric sequence! This tutorial shows you how find that formula!
How Do You Find a Geometric Mean?

To find the geometric mean of two numbers, just find the product of those numbers and take the square root! Follow along with this tutorial to learn the process step-by-step.
What is a Geometric Mean?

The geometric mean can help you find a missing term in a geometric sequence. Before you find the geometric mean, you should understand what it is. This tutorial defines geometric mean.