Asked by Frank

This is a cross product problem:

Given uxv=<2,-3,0>
find (u-5v)x(u+4v)

I appreciate your help Thank you!
Answered by Steve
(u-5v)x(u+4v)
= uxu - 5vxu + 4uxv - 20vxv
= 9uxv (why?)
Answered by Frank
Steve before you start asking why may I tell you that you completely did not understand the question this is the cross product between two vectors. x is not a variable it is a symbol of operation. So try again, you cannot just distribute.
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