MATSEC AM Pure Mathematics Complete Prep Course — Lesson 86: The scalar product and angle between vectors

Lesson 86 teaches the scalar product of vectors in component form, its geometric definition as the product of magnitudes times the cosine of the angle, and the angle formula. It covers the sign test for acute, obtuse and perpendicular, commutativity and distributivity, the result that a dot a equals the magnitude squared, and the requirement that both vectors point away from the shared vertex.

Lesson 86 of 158 in the MATSEC AM Pure Mathematics Complete Prep Course audio course from ExamPrepRise.

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