If $\begin{bmatrix$}[r] x + 2 & 7 \ y + 3 & a - 2 \end{bmatrix} = \begin{bmatrix}[r] 4 & b - 3 \ 4 & 3 \end{bmatrix}, the value of x, y, a and b are :

1. x = 2, y = 1, a = 5 and b = 10

2. x = -2, y = 1, a = 5 and b = 10

3. x = 2, y = -1, a = 5 and b = 10

4. x = 2, y = 1, a = -5 and b = 10

If A = $\begin{bmatrix$}[r] 5 & -5 \ 3 & -3 \end{bmatrix} \text{ and } B = \begin{bmatrix}[r] -5 & 5 \ -3 & 3 \end{bmatrix}; the value of matrix (A - B) is :

1. $\begin{bmatrix$}[r] 0 & 0 \ 0 & 0 \end{bmatrix}

2. $\begin{bmatrix$}[r] 10 & -10 \ 6 & -6 \end{bmatrix}

3. $\begin{bmatrix$}[r] 10 & -10 \ -6 & 6 \end{bmatrix}

4. $\begin{bmatrix$}[r] -10 & 10 \ -6 & 6 \end{bmatrix}

If A = $\begin{bmatrix$}[r] 7 & 5 \ -3 & 3 \end{bmatrix} \text{ and B} = \begin{bmatrix}[r] -2 & 5 \ 1 & 0 \end{bmatrix}, then the matrix P (such that A + P = B) is :

1. $\begin{bmatrix$}[r] 4 & 0 \ 9 & -3 \end{bmatrix}

2. $\begin{bmatrix$}[r] 9 & 0 \ 4 & -2 \end{bmatrix}

3. $\begin{bmatrix$}[r] -9 & 0 \ 4 & 3 \end{bmatrix}

4. $\begin{bmatrix$}[r] -9 & 0 \ 4 & -3 \end{bmatrix}

The additive inverse of matrix A + B, where

A = $\begin{bmatrix$}[r] 4 & 2 \ 7 & -2 \end{bmatrix} \text{ and } B = \begin{bmatrix}[r] -2 & 1 \ 3 & -4 \end{bmatrix} is :

1. $\begin{bmatrix$}[r] -2 & -3 \ -10 & 6 \end{bmatrix}

2. $\begin{bmatrix$}[r] 2 & 3 \ -10 & -6 \end{bmatrix}

3. $\begin{bmatrix$}[r] -2 & -3 \ -10 & -6 \end{bmatrix}

4. $\begin{bmatrix$}[r] -2 & 3 \ 10 & -6 \end{bmatrix}