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Class 11 Mathematics
Trigonometric Functions
CBSE · Class 11 · Mathematics · Chapter 3
Trigonometric Functions
Angles, identities and graphs of trigonometric functions.
5 lessons
45 min
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Lessons in this chapter
1
Angles, Degrees and Radians
Understand angles as rotation and use radians to connect turning, circles and distance travelled.
2
Trigonometric Functions, the Unit Circle and Graphs
Use a moving point on a circle to understand all six trigonometric functions, their signs, restrictions and repeating graphs.
3
Angle Combinations and Trigonometric Identities
Derive a connected family of identities and use their structure to evaluate exact values and prove relationships.
4
Mixed Applications and Half-Angle Reasoning
Combine identities with quadrant information, exact algebra and sign-sensitive half-angle reasoning.
5
Chapter Summary and Practice
Connect angle measure, circle coordinates, graphs and identity strategies through a complete chapter review.
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