Trigonometry
Trigonometric ratios, identities, and heights & distances (NCERT Ch. 8–9).
3 topics • Notes • Practice • AI explanations available
1. Ratios
sin, cos, tan for standard angles 0°, 30°, 45°, 60°, 90°.
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2. Identities
sin²θ + cos²θ = 1 and related identities.
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3. Applications
Heights and distances using angle of elevation and depression. Financial applications of sequences, compound growth, and unit economics frequently appear in related problems.
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