Transcription of Trigonometry (Mathematics & Mathematics Extension 1)
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Trigonometry (Mathematics & Mathematics Extension 1)
Trigonometry ( Mathematics & Mathematics Extension 1). Copyright Enoch Lau 2003 Jan 2003 (re-pub Apr 2003). Trigonometry ( Mathematics & Mathematics Extension 1). The Trigonometric Ratios Hypotenuse Opposite . Adjacent In any right triangle, the trigonometric ratios are: opp sin = hyp adj cos = hyp SOH CAH TOA. opp tan = adj The Reciprocal Ratios 1 hyp cosec = sin = opp 1 hyp sec = cos = adj 1 adj cot = tan = opp Complementary Ratios SIN and COS are complementary ratios. TAN and COT are complementary ratios. sin = cos (90 ) tan = cot (90 ). cos = sin (90 ) cot = tan (90 ). Ratios of Special Angles (Exact Values). 1 1 1. sin 30 = 2 cos 60 = 2 cos 45 =. 2. 3 tan 60 = 3 tan 45 = 1. cos 30 = 2. 1. tan 30 = 1.
Title: Microsoft Word - maths_trig.doc Author: Enoch Lau Created Date: 12/17/2003 11:52:04 AM
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