Question

What is the dot product of `<-4,-3,8 >` and `<3,-1,7 >`?

Answer 1

`veca.vecb` = `47`

Explanation:

We know,
`veca.vecb` = `a_x.b_x+a_y.b_y+a_Z.b_z`

= `(-4) · 3 + (-3) · (-1) + 8 · 7`

= `-12 + 3 + 56`

=47