What is the cross product of [9,4,-1][9,4,−1] and [4,3,6] [4,3,6]?

1 Answer
ali ergin · P dilip_k
Mar 11, 2016

A X B=27hati-58hatj+11hatjAXB=27ˆi−58ˆj+11ˆj

Explanation:

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A= <9,4,-1>" "B= <4,3,6>A=<9,4,−1> B=<4,3,6>
A X B=hati(4*6+3*1)-hatj(9*6+4*1)+hatk(9*3-4*4)AXB=ˆi(4⋅6+3⋅1)−ˆj(9⋅6+4⋅1)+ˆk(9⋅3−4⋅4)
A X B=27hati-58hatj+11hatkAXB=27ˆi−58ˆj+11ˆk

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