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This unit finishes our coverage of
trignometry in this e-text. This unit develops the three main formulas, the area, the Law of Sines, and the Law of Cosines,
in relationship to classic right triangle trigonometry. The ambiguity of Sines is explored. Application problems
in the last lesson show the utility of each of these formulas.
Download the Complete Unit #9 Version 1.5
Or download individual Unit #9 lessons below from Version 1.5.
Lesson #1 - The Area of a Triangle
Lesson #2 - The Law of Sines
Lesson #3 - The Ambiguous Nature of Sine
Lesson #4 - The Law of Cosines
Lesson #5 - Trigonometric Applications
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