If P=

Question

–2 –3
0 –5
–4 1
and Q=
3 –7
4 1
4 7
what is P–Q?
If the matrix exists, select its size before entering your answer. If the matrix does not exist, select undefined.

Answer 1

The size of P is 3x2 and the size of Q is also 3x2.

To find P-Q, we subtract the corresponding elements of P and Q:

P-Q =
-2-3 -3--7
0-5 -5-1
-4-1 1-7

=
-5 4
0 -6
-5 -6

Therefore, the matrix P-Q is a 3x2 matrix.