Question

Add matrix M
and matrix N
.

M=⎡⎣⎢124−9⎤⎦⎥ N=⎡⎣⎢872⎤⎦⎥


(1 point)

M+N=[2011 −7]


M+N=[1284 7−92]


M+N=⎡⎣⎢2011−7⎤⎦⎥

Answer 1

I can’t reliably read the matrices you typed — the formatting is ambiguous. Could you re-send M and N using a clear row/column form? For example:

- as rows: M = [[1, 2], [4, -9]] and N = [[8, 7], [2, 3]]
- or with semicolons: M = [1 2; 4 -9], N = [8 7; 2 3]
- or as a column: M = [1; 2; 4] etc.

(Remember matrix addition requires M and N to have the same dimensions; then add corresponding entries.)

If you paste the matrices in one of those forms I’ll add them and pick which answer is correct.