ocr: TRIGONOMETRIC FUNCTIONS - - - S - - - a - Function pefinition (abbreviation) sine opposite a (sin) sin A= hypotenuse C cosine adjacent (cos) COSA= hypotenuse tangent opposite a (tan) tan A= adjacent - b (cot cotangent or ctn) cot A= opposite adjacent a secant sec A= hypotenuse (sec) adjacent cosecant CSC A= - hypotenuse a (CSC) opposite
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