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# Definition of Geometric Sequence

A geometric sequence is a type of sequence in which each term is formed by multiplying the preceding term by a given value. The same value is used to multiply each term of the sequence. This value is called the common ratio for the geometric sequence.

For example,

$1,3,9,27,81,243,\dots$
is a geometric sequence. Each number is $3$ times the number before it, so its common ratio is $3$.

### Description

The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.

### Audience

Year 1 to Year 12 students

### Learning Objectives

Learn common math terms starting with letter G

Author: Subject Coach
Added on: 6th Feb 2018

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