ICSE Class 9 Maths | 7. Trigonometry by Pavan | Learn Smarter with Allrounder.ai
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Knowledge
7. Trigonometry

Trigonometry explores the relationships between the sides and angles of triangles, particularly right-angled ones. Key concepts include the definitions of primary trigonometric ratios such as sine, cosine, and tangent, as well as their reciprocal ratios. Additionally, the chapter discusses standard angle values and practical applications of trigonometry in various fields.

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Sections

  • 7

    Trigonometry

    Trigonometry deals with the relationships between the sides and angles of triangles, particularly right-angled triangles, and includes key ratios and their applications.

    Learning Practice

  • 7.1

    Introduction To Trigonometry

    Trigonometry is the study of the relationships between the angles and sides of right triangles, used to find unknown dimensions.

    Learning Practice

  • 7.2

    Basic Trigonometric Ratios

    This section covers the fundamental trigonometric ratios related to right-angled triangles, including sine, cosine, and tangent.

    Learning Practice

  • 7.3

    Reciprocal Ratios

    Reciprocal ratios are essential trigonometric functions that relate to the primary trigonometric ratios.

    Learning Practice

  • 7.4

    Relations Between Ratios

    This section covers the relationships between the three primary trigonometric ratios: tangent, cotangent, and sine-cosine identity.

    Learning Practice

  • 7.5

    Values Of Trigonometric Ratios For Standard Angles

    This section outlines the specific values of trigonometric ratios for standard angles 0°, 30°, 45°, 60°, and 90°.

    Learning Practice

  • 7.6

    Applications Of Trigonometry

    This section discusses the applications of trigonometry primarily in solving right-angled triangles and in various practical fields.

    Learning Practice

References

m9-7.pdf

Class Notes

Memorization

What we have learnt

  • Trigonometry is essential f...
  • Primary trigonometric ratio...
  • Trigonometric ratios have p...

Final Test

Revision Tests