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The document defines six trigonometric ratios - sine, cosine, tangent, cosecant, secant and cotangent - in terms of the sides of a right triangle. It provides their abbreviations and definitions using opposite, adjacent and hypotenuse sides. Complementary angles have trigonometric functions that are equal to the cofunctions of the other angle. Trigonometric identities relate sine and cosine functions. Examples demonstrate using identities to solve for trigonometric ratios in right triangles. Radians are int

Author

Andrew Wen

Language

EN