Class 10 Introduction to Trigonometry | Chapter 8 | Board Exam Revision 2021 | CBSE
Trigonometry (from Greek trigōnon, “triangle” and metron, “measure”) is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.
Class 10 Introduction to Trigonometry Reduced Syllabus 2021
Introduction to Trigonometry (8 Periods)
Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined). Values (with proofs) of the trigonometric ratios of 30o, 45o and 60o. Relationships between the ratios.
Class 10 Introduction to Trigonometry Deleted Syllabus 2021
| INTRODUCTION TO TRIGONOMETRY | Motivate the ratios whichever are defined at 0o and 90o |
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