Question

if A=i+j, B=2i-3j+k and C=4j-3k

find
(i) (AxB)xC & Ax(BxC)

Answer 1

I'll start this out, using the determinant rule for vector cross products. You do the last part, and check my work for errors.

A x B =
|i j k|
|1 1 0|
|2 -3 1| = i -j -5k

(AxB) x C =
|i j k|
|1 -1 -5|
|0 4 -3| = 17i + 3j +4k