Question

Find the sum or difference.

Answer 1

of what?

Answer 2

\[\left[\begin{matrix}-9 -1 & 7 \\ 0 &7& 2\end{matrix}\right] +\left[\begin{matrix}-2& 0 & 8 \\ -4 &5 &-1\end{matrix}\right]\]

Answer 3

ok

Answer 4

just add corresponding values.. like -9 and -2, -1 and 0

Answer 5

thanks

Answer 6

and write as a matrix with the same order

Answer 7

I used the online matrix calculator adder just to see what it did. In this case it is quick to add component wise as indicated above. What came as the sum is attached.

The adder is at: http://matrix.reshish.com/add&sub.php

Answer 8

Sum matrix should be:

-11 -1 15
-4 12 1

Answer 9

thank you

Answer 10

You are welcome. I think the matrix adder may be too much trouble. I may have entered some bad data.

Answer 11

its okay