Question

se u = (2,4,1) e v = (1,-1,2) qual o produto vetorial desses dois vetores?

Answer 1

$\boxed{u*v= \left|\begin{array}{ccc}i&j&k\\2&4&1\\1&-1&2\end{array}\right| =8i+j-2k-4k-4j+i=(9,-3,-6)}$