General properties of such curves can then be studied in terms of their algebraic properties.trigonometry is the study of triangles, angles, and their relations. It also involves the study of trigonometric functions. there are six trigonometric ratios associated with an angle: SINE, cosine, tangent, cotangent, secant and cosecant. there are especially useful in determining unknown angles or the sides of triangles based upon known trigonometric ratio. in antiquity, trigomometry was used with considerable success by survevors and astronomers
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