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Rzqust [24]
3 years ago
10

Find the vector, not with determinants, but by using properties of cross products. k × (i − 3j)

Mathematics
1 answer:
sergey [27]3 years ago
3 0
\mathbf k\times(\mathbf i-3\mathbf j)=(\mathbf k\times\mathbf i)-3(\mathbf k\times\mathbf j)
=\mathbf j-3(-\mathbf i)
=3\mathbf i+\mathbf j
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