Question

A=[ 3 2 0 -1] B=[ 2 8 6 3] What is matrix A + matrix B?

Answer 1

For this case we have to, to add matrices, we must add term to term, that is:

Let:

$C=\left[\begin{array}{cc}a&b\\c&d\\\end{array}\right]$ and $D=\left[\begin{array}{cc}e&f\\g&h\\\end{array}\right]$

We have to:

$C+D=\left[\begin{array}{cc}a+e&b+f\\c+g&d+h\\\end{array}\right]$

Then, solving the given exercise we have:

$A+B=\left[\begin{array}{cccc}3+2&0+8&0+6&-1+3\\\end{array}\right]$

Taking into account that different signs are retsn and the sign of the major is placed, we have:

$A+B=\left[\begin{array}{cccc}5&10&6&2\\\end{array}\right]$

Thus, $A+B=\left[\begin{array}{cccc}5&10&6&2\\\end{array}\right]$

Answer:

$A+B=\left[\begin{array}{cccc}5&10&6&2\\\end{array}\right]$

Answer 2

Add corresponding terms.

A + B = [3, 2, 0, -1] + [2, 8, 6, 3] = [3+2, 2+8, 0+6, -1+3]

... = [5, 10, 6, 2]