Question

I have asked this question many times.
I think there is not intelligent person in brainly.
please answer this question if you can...​

Answer 1

• Ā×B is the vector product
• while A•B is the scalar product..
• before solving pls note this:

1. î×j =ķ
2. j×k=i
3. k×j= i

and any vice versa happen it will be negative...

1. i×i=0

bcz sin@ gets 0° which is o...same will apply for j and k

• in dot product cos@ is there so ...only self vectors can multiply...bcs others at 90° ..which results cos@=0

see the attachment...

Good luck ♧♧