$\"\"$

Given matrices are $\"\"$ .

If two matrices have the same dimensions $\"\"$ , they can be subtracted each other. You subtract matrices by subtracting the corresponding elements of the matrices.

$\"\"$ (Subtraction of matrices)

Product of two same signs is positive sign and product of two opposite signs is negative.

$\"\"$

$\"\"$ . $\"\"$

The value of $\"\"$ .