you cant factorise both of them as they have nothing in common
Answer:
2080.69
Step-by-step explanation:
9514 1404 393
Answer:
![\left[\begin{array}{cc}12&1\\-4&1\\-11&28\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D12%261%5C%5C-4%261%5C%5C-11%2628%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
The element at row i column j in the product is the dot-product of row i of the first matrix and column j of the second matrix. For example, row 2 column 1 of the product is ...
(row 2) · (column 1)
[3, -2, 4] · [2, 7, 1] = (3)(2) +(-2)(7) +(4)(1) = 6 -14 +4 = -4
The attachment shows the complete product matrix. It is convenient to let a spreadsheet or graphing calculator do the tedious repetitive arithmetic.
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