Question

Dadas as matrizes M= $\left[\begin{array}{ccc}-4&1\\3&2\end{array}\right]$ e N= $\left[\begin{array}{ccc}2&0&\\1&-2\end{array}\right]$ , determine o elemento c₁₂ da matriz C= M.Nt.

Answer 1

Olá Mariaangela

M = ( -4  1)
       (  3  2)

N = (2  0)
       (1 -2)

Nt = (2  1)
        (0 -2) 

C = M*Nt = (-8  -6)
                  (6  -1)

C12 = -6 

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