Section 5.5. In the previous sections, we used: a) The Fundamental Identities a)Sin²x + Cos²x = 1 b) Sum & Difference Formulas a)Cos (u – v) = Cos u.
Chapter 5 Inverse Trigonometric Functions; Trigonometric Equations and Inequalities 5.1 Inverse sine, cosine, and tangent 5.2 Inverse cotangent, secant,
