Answer:
Elements in third column = - (elements in the first column) + 8(elements in the second column)
Step-by-step explanation:
A matrix is a rectangular array in which elements are arranged in a rows and columns.
Order of a matrix = Number of rows × Number of columns
Given matrix is [tex]\left[\begin{array}{ccc}1&2&15\\7&8&57\\6&5&34\end{array}\right][/tex]
Here,
[tex]15=-1+8(2)\\57=-7+8(8)\\\34=-6+8(5)[/tex]
So,
Elements in third column = - (elements in the first column) + 8(elements in the second column)
