Question #2cd38

1 Answer
Jan 17, 2018

As I understood

Explanation:

Let A=Axˆi+Ayˆj+Azˆk and
B=Bxˆi+Byˆj+Bzˆk

To find (AB)
Inserting values of both the vectors in terms of unit vectors we get

AB=(Axˆi+Ayˆj+Azˆk)(Bxˆi+Byˆj+Bzˆk)
AB=(AxBx)ˆi+(AyBy)ˆj+(AzBz)ˆk