Matrices Practice Questions Ques21
Question: If $C = \begin{pmatrix} 2 & 3 \\ 4 & 5 \end{pmatrix}$ and $D = \begin{pmatrix} 1 & 1 \\ 1 & 1 \end{pmatrix}$, what is $C + D$?
Options:
(A) $\begin{pmatrix} 3 & 4 \\ 5 & 6 \end{pmatrix}$
(B) $\begin{pmatrix} 1 & 1 \\ 1 & 1 \end{pmatrix}$
(C) $\begin{pmatrix} 2 & 3 \\ 4 & 5 \end{pmatrix}$
(D) $\begin{pmatrix} 0 & 0 \\ 0 & 0 \end{pmatrix}$
Show Answer
Answer: A
Explanation:
(A) Correct. Each element of $C$ is added to the corresponding element of $D$.
(B) Incorrect. This is matrix $D$ itself, not the sum.
(C) Incorrect. This is matrix $C$ itself, not the sum.
(D) Incorrect. This matrix does not represent the sum of $C$ and $D$.
BETA
