Question

N =⟨−2,  −1⟩ and D=
`\left[\begin{array}{cc}-3&0\\4&1\\\end{array}\right]`

What is D⋅n?

Answer 1

6

-9

Explanation:

-3(-2) + 0(-1)

4(-2) + 1(-1)

6 + 0

-8 + -1

6

-9

*don't forget to add brackets on each side of every calculation okay :)