Class 11
Move from right triangles to radians, the unit circle, graphs and compound angles. Follow the Class 11 lessons with Rajesh Sir, one clear idea at a time.
Classes 10–12 · Mathematics
Trigonometry with Rajesh Sir
Learn trigonometry with interactive triangles, exact ratios, moving graphs and worked examples. Follow clear CBSE Class 10, 11 and 12 routes with topic quizzes.
Class 11 · Mathematics
Radians and the unit circle
Move around the unit circle, understand radians and discover signs, coordinates, arc lengths and chord lengths through clear examples and short quizzes.
Class 11 · Mathematics
Trigonometric graphs
Explore all six trigonometric graphs. Read zeros, signs, periods, domains and ranges, with moving points, clear asymptotes and questions after each topic.
Class 11 · Mathematics
Compound and multiple angles
Build sine, cosine, tangent and cotangent angle formulas. Derive double and triple angles, transform sums and products, and practise exact values.