6.2 Trig. Functions of Acute AnglesPre-Calculus

4 Inverse Trigonometric functions. 4.1 Arc-sine function. 4.2 Arc-cosine function. 4.3 Arc-tangent function. 5 Trigonometric Identities. 6 R-formula. 7 Solutions of Trigonometric Equations. 7.1 Principal Values and Basic Angles. 7.2 Solution of Trigonometric Equations in a Specified Range. 7.3 General Solution of Trigonometric Equations. 8 ... ................
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