Matemáticas, pregunta formulada por caroemh, hace 11 meses

Alguien me ayuda con Matrices

Adjuntos:

Respuestas a la pregunta

Contestado por femehu20
1
Hallando A + B:
===============
  A + B= \left[\begin{array}{ccc}3&0&1\\-2&-1&2\end{array}\right] + \left[\begin{array}{ccc}0&2&1\\-1&-2&3\end{array}\right] \\  \\  \\ 
A + B = \left[\begin{array}{ccc}3 + 0&0+2&1+1\\-2-1&-1-2&2+3\end{array}\right] \\  \\  \\ 
A + B = \left[\begin{array}{ccc}3&2&2\\-3&-3&5\end{array}\right]

Hallando B - A:
===============
B - A =   \left[\begin{array}{ccc}0&2&1\\-1&-2&3\end{array}\right] - 
               \left[\begin{array}{ccc}3&0&1\\-2&-1&2\end{array}\right] \\  \\  \\ 
B - A =   \left[\begin{array}{ccc}0-3&2-0&1-1\\-1+2&-2+1&3-2\end{array}\right]  \\  \\  \\ 
B - A =   \left[\begin{array}{ccc}-3&2&0\\1&-1&1\end{array}\right]

Hallando 2A - 3B:
===============
2A - 3B=   2 \left[\begin{array}{ccc}3&0&1\\-2&-1&2\end{array}\right] - 
               3\left[\begin{array}{ccc}0&2&1\\-1&-2&3\end{array}\right] \\  \\  \\2A - 3B=   \left[\begin{array}{ccc}6&0&2\\-4&-2&4\end{array}\right]  - 
                 \left[\begin{array}{ccc}0&6&3\\-3&-6&9\end{array}\right] \\  \\  \\2A - 3B=   \left[\begin{array}{ccc}6-0&0-6&2-3\\-4+3&-2+6&4-9\end{array}\right]  \\  \\  \\2A - 3B= \left[\begin{array}{ccc}6&-6&-1\\-1&4&-5\end{array}\right]

caroemh: gracias, me servirá bastante!
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