A (3i + 2j + k) in B (4j) in and C (i + 4j 3k) in.

A = (3i + 2j + k) in; B = (4j) in; and C = (i + 4j 3k) in.

Evaluate (A * B)*C

Solution

A = (-3i +2j +k) B = 4j C = ( -i +4j -3k)

I assume we have to calculate cross product : AXBXC

AXB = ( -3 , ██ ,██) █ ( ██) = (██████ , ██ , █████)

██████████ = (█████ , ██ , █████) ██ ( ████ , ██ , ██████)

= ( ████ , ███ █████████)

= ██████ █████ ███