Question

Perform the indicated operations. If the matrix does not exist, write impossible.
[8 2 6] + [11 -7 1]
Please help & explain ((:!

Answer 1

Matrix addition is done entry by entry. In general:\[\begin{bmatrix} a & b & c \end{bmatrix} + \begin{bmatrix} d & e & f \end{bmatrix} = \begin{bmatrix} a + d & b + e & c + f \end{bmatrix}\]

Answer 2

Can you explain to me & answer. I am confused.

Answer 3

What are a, b, c, d, e and f in your problem looking at my comment above?

Answer 4

[-8 2 6] + [11 -7 1] = [-8 + 11 2 + -7 6+1]

Answer 5

That is correct. So...
-8 + 11 = ?
2 + -7 = ?
6+1 = ?

Answer 6

-8 + 11 = 3
2 + -7 = -5
6 + 1 = 7