Trigonometry Grade 12 Textbook PDF

Trigonometry Grade 12 Textbook PDF

Trigonometry Grade 12 Textbook PDF: A Comprehensive Resource for South African Students


Trigonometry is a branch of mathematics that deals with the relationships between angles and sides of triangles. It is a fundamental subject in mathematics and has applications in various fields such as engineering, architecture, surveying, astronomy, and navigation. In South Africa, trigonometry is taught as part of the Grade 12 Mathematics curriculum. This textbook provides a comprehensive overview of the subject, covering all the key concepts and topics that students need to know.

Chapter 1: Introduction to Trigonometry

This chapter introduces the basic concepts of trigonometry, including angles, degrees, radians, and the trigonometric ratios (sine, cosine, and tangent). Students will learn how to calculate the trigonometric ratios of angles using right-angled triangles and the unit circle.

Chapter 2: Trigonometric Identities

This chapter explores the various trigonometric identities, which are equations that relate the trigonometric ratios of different angles. These identities are useful for simplifying trigonometric expressions and solving trigonometric equations.

Chapter 3: Solving Trigonometric Equations

This chapter deals with the methods for solving trigonometric equations, which are equations that involve trigonometric functions. Students will learn how to use algebraic techniques and trigonometric identities to find the solutions of these equations.

Chapter 4: Radian Measure

This chapter introduces the concept of radian measure, which is a way of measuring angles using the circumference of a circle. Students will learn how to convert between degrees and radians, and how to use radian measure in trigonometric calculations.

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Chapter 5: Applications of Trigonometry

This chapter explores the various applications of trigonometry in real-world situations. Students will learn how to use trigonometry to solve problems in navigation, surveying, engineering, and architecture.

Chapter 6: Complex Numbers

This chapter introduces the concept of complex numbers, which are numbers that have both a real and an imaginary part. Students will learn how to perform operations with complex numbers, and how to use them to solve trigonometric equations.

Features of the Textbook

  • Comprehensive coverage of all the key concepts and topics in trigonometry
  • Clear and concise explanations with step-by-step examples
  • Numerous practice exercises and problems to reinforce learning
  • Engaging and interactive activities to make learning more enjoyable
  • A glossary of terms and a detailed index for easy reference

Benefits of Using the Textbook

  • Helps students develop a strong foundation in trigonometry
  • Prepares students for further studies in mathematics and related fields
  • Equips students with the skills and knowledge needed for success in various careers
  • Enhances students’ problem-solving and critical thinking skills
  • Promotes a deeper understanding of the world around us


This Trigonometry Grade 12 Textbook PDF is an essential resource for South African students who are studying trigonometry. Its comprehensive coverage of the subject matter, clear explanations, engaging activities, and practice exercises make it an ideal tool for both students and teachers. With this textbook, students can gain a deep understanding of trigonometry and its applications in various fields.