Use matrices A and B. Compute B -A if you can
A=[-5 4 -8 2] B=[-2 7 -3 1 -6 0]
The subtraction of matrices is only defined if the two matrices have the same dimensions. In this case, matrix A is a 1x4 matrix and matrix B is a 1x6 matrix. Thus, we cannot compute B - A.
To compute B - A, we need to make sure that the dimensions of both matrices are the same. However, the matrices A and B have different dimensions.
Matrix A is a 1x4 matrix (1 row and 4 columns), and matrix B is a 1x6 matrix (1 row and 6 columns).
Since the dimensions do not match, we cannot compute B - A in this case.
To subtract matrices A and B, we need to have the same dimensions for both matrices. In this case, A is a 1x4 matrix and B is a 1x6 matrix.
Since A has 4 columns and B has 6 columns, we need to append two additional columns of zeros to matrix A so that it matches the dimensions of B.
The augmented matrix [A|0] will have the dimensions 1x6 like matrix B.
Here's how we can compute B - A:
A = [-5 4 -8 2]
B = [-2 7 -3 1 -6 0]
Augmented A = [-5 4 -8 2 0 0]
Now let's compute B - A:
B - A = [-2 7 -3 1 -6 0] - [-5 4 -8 2 0 0]
= [-2 - 5 7 - 4 - 3 - (-8) 1 - 2 - 6 - 0]
= [3 3 5 -1 -6 0]
So, the result of B - A is the matrix [3 3 5 -1 -6 0].