Question

Show that 2 vectors a=2i-3j-k b=-6i+9k+3k are antiparallel

Answer 1

Please refer to the answer given below :

Answer 2

Answer:

Let A=2i-3j-k

B=-6i+9j+3k=(-3)(2i-3j-k)=(-3)A

So A and B ANTI PARALLEL