PreCalculus Online Instruction with Video

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PreCalculus Overview
Unit I
Lesson 1 – Introduction to Trigonometry
Lesson 2 – Reciprocal Trigonometric Ratios
Lesson 3 – Interpreting the Trigonometry Tables
Lesson 4 – Use the Trig Table to Solve for the Unknown
Lesson 5 – Using a Calculator and Arc Functions
Lesson 6 – Angles of Elevation and Depression
Lesson 7 – Angles 360°, and Reference Angles
Lesson 8 – Cofunctions; Negative Angle Relationships
Unit II
Lesson 9 – Proving Trigonometric Identities
Lesson 10 – Verifying Trig Expressions and Identities
Lesson 11 – Sum and Difference Identities
Lesson 12 – The Double-Angle and Half-Angle Identities
Lesson 13 – Law of Sines
Lesson 14 – Law of Cosines
Unit III
Lesson 15 – Radian Measure
Lesson 16 – Polar Coordinates; Rectangular Coordinates
Lesson 17 – Polar Equations and Polar Graphs
Lesson 18 – Vectors
Lesson 19 – Functions, Relations, Domain, and Range
Lesson 20 – Composite Functions
Lesson 21 – Logarithms
Lesson 22 – Natural Exponential and Logarithm Functions
Unit IV
Lesson 23 – Graphing Sine and Cosine Functions
Lesson 24 – Graphing the Cosecant and Secant
Lesson 25 – Graphing the Tangent and Cotangent
Lesson 26 – Arithmetic Sequences and Series
Lesson 27 – Geometric Sequences and Series
Lesson 28 – Equations with Radicals and Absolute Value
Lesson 29 – Inequalities with Absolute Value and Radicals
Lesson 30 – Limits
Appendices
Appendix A – Pythagorean Theorem
Appendix B – Special Triangles (45°-45°-90°; 30°-60°-90°)
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Online Resources PreCalculus Online Instruction with Video Lesson 6 – Angles of Elevation and Depression

Lesson 6 – Angles of Elevation and Depression

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