Question

X =

1 2 3
-1 0 4

Y =

1 0 4
-3 2 -2



What is the sum of matrix X and matrix Y?

Answer 1

X+Y =
`\left[\begin{array}{ccc}2&2&7\\-4&2&2\end{array}\right]`

Explanation:

Add corresponding terms.

xy11 = 1 + 1 = 2

xy12 = 2 + 0 = 2

xy13 = 3 + 4 = 7

xy21 = -1 -3 = -4

xy22 = 0 + 2 = 2

xy23 = 4 - 2 = 2