Ch8. Introduction to Trigonometry

Class 10 Maths
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In this self study course, you will learn trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined); motivate the ratios whichever are defined at 0°, 90°. Values of the trigonometric ratios of 30°, 45° and 60°. Relationships between the ratios.
Proof and applications of the identity \sin^2 A + \cos^2 A = 1. Only simple identities to be given. Trigonometric ratios of complementary angles.
For further understanding of concepts and for examination preparation, practice questions based on the above topics are discussed in the form of assignments that have questions from NCERT Textbook exercise, NCERT Examples, Board’s Question Bank, RD Sharma, NCERT Exemplar etc. instead of only one book. The PDF of assignments can be downloaded within the course.

Additional information

Syllabus Medium


Explanation Language

Hinglish (Hindi + English)


9 hours 34 minutes


45 Days


Ashish Kumar (Agam Sir)

Course Content

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PDF Updated on 8th August 2020