Get NCERT Solutions with videos of all questions and examples of Chapter 8 Class 10 Trigonometry. Videos of all questions are made with step-by-step explanations. Check it out now.

Trigonometry means studying relationship between measures of triangle. Usually, we talk about right triangles when we study trigonometry,

In this chapter, we will study

- What is
**sin, cos, tan (**Sine, cosine, tangent) ... and how they are found in a triangle - What is
**sec, cosec, cot,**and how is it related to sin, cos, tan. - (Sin, cos, tan, sec, cosec, cot are known as Trigonometric Ratios)
- Then, we study
**Trigonometric ratios of specific angles l**ike 0°, 30°, 45°, 60°, 90° ; and do some questions - We study the formulas of
**sin (90 - θ)**, cos (90 - θ), tan (90 - θ) - And then we study Trigonometric Identities, and how other identities are derived from
**sin**^{2}θ + cos^{2}θ = 1

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