Objectives
After completing this module, you will be able to:
prove Pythagorean Identities and apply them to calculate trigonometric ratios and to solve problems
simplify expressions using trigonometric identities
prove the double-angle, half-angle, angle sum and difference formulas for sine, cosine, and tangent
apply the double-angle, half-angle, angle sum and difference formulas to solve problems
solve mathematical and real-world problems involving one-variable trigonometric ratios
solve mathematical and real-world problems that are modeled with trigonometric equations