Mathematics
Summermlock
2015-11-10 17:20:57
Find the vector, not with determinants, but by using properties of cross products. k × (i − 3j)
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Dina00
2015-11-10 22:14:33

[latex]mathbf k imes(mathbf i-3mathbf j)=(mathbf k imesmathbf i)-3(mathbf k imesmathbf j)[/latex] [latex]=mathbf j-3(-mathbf i)[/latex] [latex]=3mathbf i+mathbf j[/latex]

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