vectors help

for the vectors a=i+4j-2k and b=2i-j+3k find :

axb

Quote:

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Originally Posted by bobmarly12345

for the vectors a=i+4j-2k and b=2i-j+3k find : axb

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Evaluate this determinate expanding along the first row:

I assume a x b is the cross product. Try the method described in Wikipedia.