Answer:
It's 5
Step-by-step explanation:
this is because all you really have to do is add 1+4 they just put it this way to be mean lol
The first entry of the resultant matrix is 5 .
A matrix is a array of numbers or expressions used in mathematics to solve systems of equations .
The given matrix are 3 x 1 matrix
As they same number of rows and columns so addition can be done.
The resultant matrix is ( 5 1 10 )
The first entry of the resultant matrix is 5 .
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