8 lessons covering everything from trig ratios and the unit circle to the Law of Sines/Cosines and real-world heights & distances — each with theory, worked examples, practice questions, and a downloadable worksheet.
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Trigonometric ratios connect the angles of a right triangle to the ratios of its...
The unit circle is a circle of radius 1 centered at the origin — it extends sine...
Trigonometric identities are equations that are always true for every valid angl...
The graphs of sine, cosine, and tangent reveal their repeating wave-like nature ...
Inverse trig functions reverse the process of sine, cosine, and tangent — instea...
The Law of Sines connects the sides and angles of ANY triangle, not just right t...
The Law of Cosines generalizes the Pythagorean theorem to work with ANY triangle...
Heights and distances problems use trigonometry to measure things that are hard ...
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