Question

If U = [2 –3 4], V = $\begin{bmatrix} 3 \\ 2 \\ 1 \end{bmatrix}$, X = [0 2 3] and Y = $\begin{bmatrix} 2 \\ 2 \\ 4 \end{bmatrix}$, then

UV + XY is equal to :

• A. 20
• B. [– 20]
• C. –20
• D. [20]

Answer 1

Answer: (D)

$20$

Answer 2

UV = [6 – 6 + 4]

XY = [0 + 4 + 12]

UV + XY = [20]