Question

For u=⟨–4,5⟩ and v=⟨2,1⟩, find u · v.

Answer 1

-40

-13

-6

-3

Answer 2

<a,b> dot <c,d>
a*c+b*d

Answer 3

multiply first components from both

multiply second components from both


add those results

Answer 4

-8+5

Answer 5

and I gets -3

Answer 6

:) sounds great and looks great
and is greatly correct