Algebra and Trigonometry 2e by Abramson, Jay

Table of Contents: “…Trigonometric Identities and Equations -- Introduction to Trigonometric Identities and Equations -- 9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions -- 9.2 Sum and Difference Identities -- 9.3 Double-Angle, Half-Angle, and Reduction Formulas -- 9.4 Sum-to-Product and Product-to-Sum Formulas -- 9.5 Solving Trigonometric Equations -- Chapter Review -- Exercises -- Chapter 10. …”
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