Question

Me ajudem por favor a responder essa questao.
Dadas as matrizes a=3 -1 4 5 7 2,b=0 -2 2 1 -4 8,c=8 11 -6.calcule
a) (a+b).c
b) a.c+b.c
Eu preciso dessa conta para hoje

Answer 1

Esta detalhado na folha, mas resumidamente:
a. $( \left[\begin{array}{ccc}3&-1&4\\5&7&2\end{array}\right] + \left[\begin{array}{ccc}0&-2&2\\1&-4&8\end{array}\right])* \left[\begin{array}{ccc}8\\11\\-6\end{array}\right] = \left[\begin{array}{ccc}-45\\21\end{array}\right]$

b. $( \left[\begin{array}{ccc}3&-1&4\\5&7&2\end{array}\right] *\left[\begin{array}{ccc}8\\11\\-6\end{array}\right] )+(\left[\begin{array}{ccc}0&-2&2\\1&-4&8\end{array}\right]*\left[\begin{array}{ccc}8\\11\\-6\end{array}\right]) = \left[\begin{array}{ccc}-45\\21\end{array}\right]$