2.10.4

Check If a Number is In a Sequence

Test yourself

Sequences

Is 30 part of the sequence given by the expression n² + 5? What about 40?

Illustrative background for We find n = ± 5Illustrative background for We find n = ± 5 ?? "content

We find n = ± 5

  • n can only be positive so discard the negative answer.
Illustrative background for We find n = ± 5.91...Illustrative background for We find n = ± 5.91... ?? "content

We find n = ± 5.91...

  • n can only be positive so discard the negative answer.

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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