(IB) Class 10 Mathematics – Group 5, Geometry & Trigonometry | 6. Trigonometric Identities and Graphs by Abraham | Learn Smarter
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6. Trigonometric Identities and Graphs

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Sections

  • 1

    Basics Of Trigonometric Functions

    This section introduces the fundamental trigonometric functions and their relationships with right-angled triangles.

  • 1.1

    Definitions

    This section outlines key definitions and fundamental concepts associated with trigonometric identities and functions essential for understanding geometry and trigonometry.

  • 1.2

    Right-Angled Triangle Definitions

    This section introduces the fundamental definitions related to right-angled triangles in trigonometry, including the key trigonometric functions derived from these definitions.

  • 2

    Trigonometric Ratios In The Unit Circle

    This section explores trigonometric ratios as defined by the unit circle, highlighting their relationships to angles and coordinates.

  • 2.1

    Unit Circle Properties

    The section explains the unit circle's importance in trigonometry, detailing how trigonometric functions relate to angles on the circle.

  • 2.2

    Periodicity And Symmetry

    This section explores the periodic nature and symmetry of trigonometric functions, focusing on the behaviors of sine and cosine functions.

  • 3

    Fundamental Trigonometric Identities

    Fundamental trigonometric identities are critical equations involving trigonometric functions that hold true for all angles.

  • 3.1

    Pythagorean Identities

    The Pythagorean identities are fundamental equations in trigonometry that relate the squares of sine, cosine, tangent, cotangent, secant, and cosecant.

  • 3.2

    Reciprocal Identities

    Reciprocal identities relate the main trigonometric functions to their inverses.

  • 3.3

    Quotient Identities

    Quotient identities define the relationships between the tangent and cotangent functions in terms of sine and cosine.

  • 4

    Co-Function And Negative Angle Identities

    This section covers co-function identities and negative angle identities, crucial for understanding trigonometric functions and their relationships.

  • 5

    Trigonometric Graphs

    This section covers the graphs of sine, cosine, and tangent functions, highlighting their shapes, key points, and characteristics such as amplitude and period.

  • 5.1

    Graph Of Y = Sin(Θ)

    This section covers the key features and characteristics of the graph of the sine function, including its shape, amplitude, and period.

  • 5.2

    Graph Of Y = Cos(Θ)

    This section discusses the graphical representation of the cosine function, its properties, and key evaluation points.

  • 5.3

    Graph Of Y = Tan(Θ)

    This section focuses on the characteristics and behavior of the graph of the tangent function, y = tan(θ).

  • 6

    Transformations Of Trigonometric Graphs

    This section covers how to analyze transformations of trigonometric graphs, focusing on changes to amplitude, period, phase shift, and vertical shift.

  • 6.1

    General Transformation Form

    This section covers the general transformation form of trigonometric graphs, detailing how amplitude, period, phase, and vertical shifts modify the function.

  • 6.2

    Examples Of Transformations

    This section delves into the transformations of trigonometric functions, illustrating how alterations in parameters affect the graphs.

  • 7

    Applications Of Trigonometric Graphs

    This section focuses on the real-world applications of trigonometric graphs in various fields such as physics, engineering, and architecture.

  • 8

    Chapter Summary

    This chapter covers trigonometric identities and graphs, vital for understanding the relationships between angles and sides of triangles and their applications.

  • 9

    Worked Examples

    This section provides worked examples that illustrate the application of trigonometric identities and graph transformations in mathematics.

  • 9.1

    Example 1: Prove The Identity

  • 9.2

    Example 2: Graph Transformation

  • 10

    Practice Problems

    This section presents practice problems to reinforce understanding of trigonometric identities and functions.

Class Notes

Memorization

Revision Tests