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Trigonometry: Definition of Trigonometric Ratios using right triangles.

Diagram showing three right triangles with angles of 60°, 45°, and 30°, illustrating the definition of trigonometric ratios with labeled sides and corresponding length ratios.

Diagram showing three right triangles with angles of 60°, 45°, and 30°, illustrating the definition of trigonometric ratios with labeled sides and corresponding length ratios.

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