Question

I need help solving this This is from my act prep guide It is in the calculus subject

Answer 1

Recall that to be able to add or subtract two matrices, they have to be the same size.

Therefore:

1) A 3x2 matrix and a 2x4 matrix have not the same size, therefore you cannot add them.

2) A 1x2 matrix and a 1x2 matrix have the same size, therefore you can subtract them.

3) A 2x4 matrix and a 4x2 matrix have not the same size, therefore you cannot subtract them.

Answer:

1) False.

2) True.

3) False.