Magnitude and direction of position vectors in 3D | Vector Algebra | Grade 12 | Math | Khan Academy
9:34
YouTubeKhan Academy India - English
Magnitude and direction of position vectors in 3D | Vector Algebra | Grade 12 | Math | Khan Academy
In this video, we look at ways to find the magnitude and direction of position vectors. We derive the formula for the magnitude of a position vector. We look at a few lazy ways to talk about direction of a vector before talking about the direction cosines. We also discuss why cosines are better at this than sine or tan. Courses on Khan Academy ...
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