100. Angle between two planes, VERY EASY

▼ IMPORTANT ▼
In this video I will explain how the angle formed by two planes is calculated, we will see a solved example (solved exercise), and using geometry we will see how the angle formed by the two planes coincides with the angle between their normal vectors. The angle is calculated by means of the cosine formula that uses the modulus of the vectors and the dot product (inner product, interior product, or scalar product). Everything explained step by step.
Calculus # Geometry # Analysis
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Calculus of several variables, James Stewart
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