2.10.8

Quadratic Sequences

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Quadratic Sequences

Quadratic sequences don’t have a constant difference between terms. Instead, the differences form an arithmetic progression themselves. Examples include:

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Square numbers

  • The square numbers are 12, 22, 32, 42, ...
  • So the sequence is 1, 4, 9, 16, 25, 36, ...
Illustrative background for Cube numbersIllustrative background for Cube numbers ?? "content

Cube numbers

  • The cube numbers are 13, 23, 33, 43, ...
  • So the sequence is 1, 8, 27, 64, 125, ...

Jump to other topics

1Number

1.1Using Numbers

1.2Fractions, Decimals & Percentages

1.3Powers & Roots

1.4Accuracy

2Algebra

2.1Introduction to Algebra

2.2Manipulating Algebra

2.3Proofs & Functions

2.4Straight Line Graphs

2.5Common Graphs

2.6Transformations & Tangents

2.7Properties of Graphs

2.8Solving Equations

2.9Inequalities

2.10Sequences

3Ratio

4Geometry

4.1Introduction to Geometry

4.2Triangles & Quadrilaterals

4.3Transformations

4.4Circle Basics

4.5Circle Theorems

4.6Measurements & Units

4.7Calculating Area

4.8Triangle Formulae

4.93D Shapes

4.10Vectors

5Probability

6Statistics

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