Question

What is the value of the entry represented by c41

Answer 1

ANSWER

$C_{41}=2$

EXPLANATION

This very simple to do.

First locate the entry in $A_{41}$ in matrix A. That is the entry in the intersection of the fourth row and first column of matrix A. This entry is  $7$.

Then multiply by the scalar which is 2 to get,

$2\times 7=14$.

Next we locate the entry in $B_{41}$ in matrix B also. Which is $4$. We multiply by the scalar of $-3$ to get,

$-3\times 4=-12$.

We now add these two corresponding entries to obtain,

$14+-12=14-12=2$

See diagram