# Grade 12 Mathematics Notes

> CAPS-aligned Grade 12 Mathematics revision notes, broken down topic by topic with worked examples, diagrams, and key definitions.

- Page: https://www.hlayiso.com/grade-12/mathematics/notes

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## Topics

Each section has a free preview; the full notes are in the free Hlayiso account.

### Exponents and Surds

- [Exponents and Surds notes](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds)
- [The Number System](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds/the-number-system)
- [Working with Irrational Numbers](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds/working-with-irrational-numbers)
- [Exponents](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds/exponents)
- [Exponential Equations](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds/exponential-equations)
- [Equations with Rational Exponents](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds/equations-with-rational-exponents)
- [Exam-Type Examples](https://www.hlayiso.com/grade-12/mathematics/notes/exponents-and-surds/exam-type-examples)

### Algebraic expressions, equations and inequalities

- [Algebraic expressions, equations and inequalities notes](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities)
- [Algebraic Expressions](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/algebraic-expressions)
- [Addition and Subtraction](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/addition-and-subtraction)
- [Multiplication and Division](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/multiplication-and-division)
- [Factorising](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/factorising)
- [Notes on Factorising a Trinomial](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/notes-on-factorising-a-trinomial)
- [Quadratic Equations](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/quadratic-equations)
- [Quadratic Inequalities](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/quadratic-inequalities)
- [Simultaneous Equations](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/simultaneous-equations)
- [The Nature of the Roots](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/the-nature-of-the-roots)

### Number patterns

- [Number patterns notes](https://www.hlayiso.com/grade-12/mathematics/notes/number-patterns)
- [Number Patterns](https://www.hlayiso.com/grade-12/mathematics/notes/number-patterns/number-patterns)
- [Arithmetic Sequences](https://www.hlayiso.com/grade-12/mathematics/notes/number-patterns/arithmetic-sequences)
- [Quadratic Sequences](https://www.hlayiso.com/grade-12/mathematics/notes/number-patterns/quadratic-sequences)
- [Geometric Sequences](https://www.hlayiso.com/grade-12/mathematics/notes/number-patterns/geometric-sequences)
- [Arithmetic and Geometric Series](https://www.hlayiso.com/grade-12/mathematics/notes/number-patterns/arithmetic-and-geometric-series)

### Functions and graphs

- [Functions and graphs notes](https://www.hlayiso.com/grade-12/mathematics/notes/functions-and-graphs)
- [What is a Function?](https://www.hlayiso.com/grade-12/mathematics/notes/functions-and-graphs/what-is-a-function)
- [Function Notation](https://www.hlayiso.com/grade-12/mathematics/notes/functions-and-graphs/function-notation)
- [The Basic Functions, Formulas and Graphs](https://www.hlayiso.com/grade-12/mathematics/notes/functions-and-graphs/the-basic-functions-formulas-and-graphs)
- [Inverse Functions](https://www.hlayiso.com/grade-12/mathematics/notes/functions-and-graphs/inverse-functions)
- [The Logarithmic Function](https://www.hlayiso.com/grade-12/mathematics/notes/functions-and-graphs/the-logarithmic-function)

### Trig Functions

- [Trig Functions notes](https://www.hlayiso.com/grade-12/mathematics/notes/trig-functions)
- [Graphs of Trigonometric Functions](https://www.hlayiso.com/grade-12/mathematics/notes/trig-functions/graphs-of-trigonometric-functions)
- [Effect of a: Amplitude](https://www.hlayiso.com/grade-12/mathematics/notes/trig-functions/effect-of-a-amplitude)
- [Effect of q: Vertical Shift](https://www.hlayiso.com/grade-12/mathematics/notes/trig-functions/effect-of-q-vertical-shift)
- [Effect of b: Period](https://www.hlayiso.com/grade-12/mathematics/notes/trig-functions/effect-of-b-period)
- [Effect of p: Horizontal Shift](https://www.hlayiso.com/grade-12/mathematics/notes/trig-functions/effect-of-p-horizontal-shift)

### Finance, growth and decay

- [Finance, growth and decay notes](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay)
- [Revision: Simple and Compound Interest](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay/revision-simple-and-compound-interest)
- [Calculating the Value of P, i and n](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay/calculating-the-value-of-p-i-and-n)
- [Simple and Compound Decay Formulae](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay/simple-and-compound-decay-formulae)
- [Nominal and Effective Interest Rates](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay/nominal-and-effective-interest-rates)
- [Investments with Time and Interest Rate Changes](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay/investments-with-time-and-interest-rate-changes)
- [Annuities](https://www.hlayiso.com/grade-12/mathematics/notes/finance-growth-and-decay/annuities)

### Differential Calculus

- [Differential Calculus notes](https://www.hlayiso.com/grade-12/mathematics/notes/differential-calculus)
- [Average Gradient](https://www.hlayiso.com/grade-12/mathematics/notes/differential-calculus/average-gradient)
- [Average Rate of Change](https://www.hlayiso.com/grade-12/mathematics/notes/differential-calculus/average-rate-of-change)
- [The Derivative of a Function at a Point](https://www.hlayiso.com/grade-12/mathematics/notes/differential-calculus/the-derivative-of-a-function-at-a-point)
- [Uses of the Derivative](https://www.hlayiso.com/grade-12/mathematics/notes/differential-calculus/uses-of-the-derivative)
- [Drawing the Graph of a Cubic Polynomial](https://www.hlayiso.com/grade-12/mathematics/notes/differential-calculus/drawing-the-graph-of-a-cubic-polynomial)

### Counting principle and probability

- [Counting principle and probability notes](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability)
- [Revision](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/revision)
- [Theoretical Probability and Relative Frequency](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/theoretical-probability-and-relative-frequency)
- [Venn Diagrams](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/venn-diagrams)
- [Mutually Exclusive Events](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/mutually-exclusive-events)
- [Complementary Events](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/complementary-events)
- [Events Which Are Not Mutually Exclusive](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/events-which-are-not-mutually-exclusive)
- [Summary of Symbols and Sets Used in Probability](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/summary-of-symbols-and-sets-used-in-probability)
- [Tree Diagrams and Contingency Tables](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/tree-diagrams-and-contingency-tables)
- [Contingency Tables](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/contingency-tables)
- [Counting Principles](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/counting-principles)
- [Use of Counting Principles in Probability](https://www.hlayiso.com/grade-12/mathematics/notes/counting-principle-and-probability/use-of-counting-principles-in-probability)

### Analytical Geometry

- [Analytical Geometry notes](https://www.hlayiso.com/grade-12/mathematics/notes/analytical-geometry)
- [Revise: Analytical Geometry](https://www.hlayiso.com/grade-12/mathematics/notes/analytical-geometry/revise-analytical-geometry)
- [The Equation of a Line](https://www.hlayiso.com/grade-12/mathematics/notes/analytical-geometry/the-equation-of-a-line)
- [The Inclination of a Line](https://www.hlayiso.com/grade-12/mathematics/notes/analytical-geometry/the-inclination-of-a-line)
- [Circles in Analytical Geometry](https://www.hlayiso.com/grade-12/mathematics/notes/analytical-geometry/circles-in-analytical-geometry)

### Trigonometry

- [Trigonometry notes](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry)
- [Revise: Trig Ratios](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/revise-trig-ratios)
- [Trig Ratios in All Quadrants](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/trig-ratios-in-all-quadrants)
- [Solving Triangles with Trig](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/solving-triangles-with-trig)
- [Using a Calculator](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/using-a-calculator)
- [Special Angles](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/special-angles)
- [Using Reduction Formulae](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/using-reduction-formulae)
- [Trigonometric Identities](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/trigonometric-identities)
- [More Trig Identities](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/more-trig-identities)
- [Solving Trigonometric Equations](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/solving-trigonometric-equations)
- [More Solving Trig Equations](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/more-solving-trig-equations)
- [Compound & Double Angle Identities](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/compound-and-double-angle-identities)
- [Determining x Undefined](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry/determining-x-undefined)

### Trigonometry: Sine, Cosine and Area Rules

- [Trigonometry: Sine, Cosine and Area Rules notes](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry-sine-cosine-and-area-rules)
- [Right-angled Triangles](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry-sine-cosine-and-area-rules/right-angled-triangles)
- [The Area Rule](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry-sine-cosine-and-area-rules/the-area-rule)
- [The Sine Rule](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry-sine-cosine-and-area-rules/the-sine-rule)
- [The Cosine Rule](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry-sine-cosine-and-area-rules/the-cosine-rule)
- [Solving Problems in Two and Three Dimensions](https://www.hlayiso.com/grade-12/mathematics/notes/trigonometry-sine-cosine-and-area-rules/solving-problems-in-two-and-three-dimensions)

### Euclidean Geometry

- [Euclidean Geometry notes](https://www.hlayiso.com/grade-12/mathematics/notes/euclidean-geometry)
- [Revise: Proportion and Area of Triangles](https://www.hlayiso.com/grade-12/mathematics/notes/euclidean-geometry/revise-proportion-and-area-of-triangles)
- [Proportion Theorems](https://www.hlayiso.com/grade-12/mathematics/notes/euclidean-geometry/proportion-theorems)
- [Similar Polygons](https://www.hlayiso.com/grade-12/mathematics/notes/euclidean-geometry/similar-polygons)

### Statistics

- [Statistics notes](https://www.hlayiso.com/grade-12/mathematics/notes/statistics)
- [Bar Graphs and Frequency Tables](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/bar-graphs-and-frequency-tables)
- [Measures of Central Tendency](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/measures-of-central-tendency)
- [Measures of Dispersion (or Spread)](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/measures-of-dispersion-or-spread)
- [Five Number Summary and Box and Whisker Plot](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/five-number-summary-and-box-and-whisker-plot)
- [Histograms and Frequency Polygons](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/histograms-and-frequency-polygons)
- [Cumulative Frequency Tables and Graphs (Ogives)](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/cumulative-frequency-tables-and-graphs-ogives)
- [Variance and Standard Deviation](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/variance-and-standard-deviation)
- [Bivariate Data and the Scatter Plot](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/bivariate-data-and-the-scatter-plot)
- [The Linear Regression Line](https://www.hlayiso.com/grade-12/mathematics/notes/statistics/the-linear-regression-line)

## Frequently asked questions

### Are the Grade 12 Mathematics notes free?

Each Grade 12 Mathematics note section has a free preview on Hlayiso. Create a free Hlayiso account to read the full notes on the web or in the app; the free plan has daily limits.

### Are the notes aligned with CAPS and the ATP?

Yes. All Grade 12 Mathematics notes are written against the official CAPS curriculum and ATP so you only study what’s examinable.

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