Chapter Overview
This chapter introduces the fundamental concepts of trigonometry, focusing on the trigonometric ratios of angles, their relationships, and identities. These tools are essential in solving real-life problems involving heights, distances, and angles in various fields like architecture, astronomy, and navigation.
Important Keywords
- Trigonometry: Branch of mathematics dealing with relationships between sides and angles of triangles.
- Right-Angled Triangle: A triangle where one of the angles is 90°.
- Trigonometric Ratios: Ratios like sine, cosine, tangent defined using sides of a right triangle.
- Hypotenuse: The longest side opposite the right angle.
- Opposite Side: The side opposite to the angle in question.
- Adjacent Side: The side next to the angle in question (not hypotenuse).
- Trigonometric Identities: Equations that are true for all values of the angle.
Detailed Notes
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