Vectors in 2D and 3D

Please go back and watch the video for the previous lesson.
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This topic reviews the operations on vectors in 2 and 3 dimensions. Operations include additions of vectors, scalar multiplication, finding the magnitude of a vector, the vector from a given point A to a second given point B and we introduce the “standard” unit vectors used in \mathbb{R}^2 and \mathbb{R}^3 .