Question:

Cramer's rule help? one question?

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something is wrong with one of the following expressions, which one is it and what is wrong?

u x (v x w), u x (v x w), (u x v) x w

thank you in advance!

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  1. they are all triple cross products and yield vectors ...            { even though the 1st two are the same}...did you mean u 'dot'(v x w) vs ( u 'dot'v) x w..1st is fine , 2nd is lousy

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