The math in this book is high-school level. Most students will have studied it at some point, and some liked it and retained it better than others. What I present here is a review of the most important items from the perspective of the material we covered.
Most Important: Essential Trigonometry
Many times we have needed a few of the simplest formulas from trigonometry to accomplish our task. The “tri” in trigonometry means triangle; trig is all about triangles and the relationships between angles and the lengths of sides. I’ll not deal with the why of things; I’ll only show the needed calculations.
Figure I-1
The ...
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