1.4 Trigonometry
1.4 Trigonometry. Sine, Cosine, and Tangent. Sine, Cosine, and Tangent. Sine, Cosine, and Tangent. Pythagorean Theorem. What if the triangle is not a right-triangle?. Law of Cosines and Law of Sines. Law of cosines is given by, . Law of sines is given by,. 1.5 Scalars and Vectors.
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