Question

How do you find X+Z given `X=[(4,1), (-2,6)]` and `Y=[(0,-3)]` and `Z=[(-1,3), (0,-2)]`?

Answer 1

`X + Z==[(3,4), (-2,4)]`

Explanation:

We add matrices by adding up each corresponding element;
`[(x_11,x_12), (x_21,x_22)] + [(y_11,y_12), (y_21,y_22)] = [(x_11+y_11,x_12+y_12), (x_21+y_21,x_22+y_22)]`

Hence:
`X=[(4,1), (-2,6)]` and `Z=[(-1,3), (0,-2)]` gives:

`X + Z=[(4+(-1),1+3), (-2+0,6+(-2))]=[(3,4), (-2,4)]`