The question is at this link: Imageshack - 50492509.png
I recommend zooming in on the image because it's a little fuzzy.
Thanks!
The question is at this link: Imageshack - 50492509.png
I recommend zooming in on the image because it's a little fuzzy.
Thanks!
Addition and subtraction of matrices is possible if they are of the same dimensions. If A is a $\displaystyle n \times n$ matrix, then B should also be a $\displaystyle n \times n$ matrix if they are to be added or subtracted. And the resulting matrix is also of the same dimension. Use this concept to find out whether addition or subtraction is possible in those cases or not!