Transcription of INTRODUCTION TO TRIGONOMETRY AND ITS …
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INTRODUCTION TO TRIGONOMETRY AND ITS …
(A) Main Concepts and Results Trigonometric Ratios of the angle A in a triangle ABC right angled at Bare defined as:sine of A = sin A = sideoppositetoABChypotenuseAC =cosine of A = cos A = sideadjacenttoAABhypotenuseAC =tangent of A = tan A = sideoppositetoABCsideadjacenttoangleAAB = cosecant of A = cosec A = 1 ACsinABC=secant of A = sec A1AC cosAAB==cotangent of A = cot A = 1 ABtan ABC=tan A = sinAcosA, cot A = cosAsinAINTRODUCTION TO TRIGONOMETRY AND ITS APPLICATIONSCHAPTER 803/05/1888 EXEMPLAR PROBLEMS The values of trigonometric ratios of an angle do not vary with the lengths of thesides of the triangle , if the angle remains the same. If one trigonometric ratio of an angle is given, the other trigonometric ratios ofthe angle can be determined. Trigonometric ratios of angles: 0 , 30 , 45 , 60 and 90.
88 EXEMPLAR PROBLEMS • The values of trigonometric ratios of an angle do not vary with the lengths of the sides of the triangle, if the angle remains the same. • If one trigonometric ratio of an angle is given, the other trigonometric ratios of the angle can be determined. • Trigonometric ratios of angles: 0°, 30°, 45°, 60° and 90°. A 0° 30° 45° …
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