Introduction to Trigonometry — Formula Sheet
Gujarat Board · Class 10 · Mathematics
3 formulas from Introduction to Trigonometry (Gujarat Board Class 10 Mathematics) on one page, grouped by topic.
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Formulas and Key Relations
Six Trigonometric Ratios
tan A = sin A / cos A and cot A = cos A / sin A
Key relations
Specific trigonometric values for important angles
sin 0° = 0, sin 30° = 1/2, sin 45° = 1/√2, sin 60° = √3/2, sin 90° = 1.
Fundamental relationships that are always true
sin²A + cos²A = 1, sec²A - tan²A = 1 (for 0° ≤ A < 90°), cosec²A - cot²A = 1 (for 0° < A ≤ 90°).
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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