Calculus 3: Vector Calculus in 3-D (22 of 35) Theorems of Vector Products

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In this video I find the magnitude=? of the cross product of vectors AxB=? given A=3i-2j-5k and B=i+4j-4k using 2 method. Method 1: |AxB|=|C|=ABsin(theta)=?, Method 2: using matrices.

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so underrated teacher.
should have subs in M

amansharma
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When do we use 'Sin' and when do we use 'Cos'

ayabongampungose