Question

observe as matrizes e realize as operaçoes indicadas
- 4 6 8 5 9 3 11 2 -1 7 12 10
A 12 -1 -2 B 3 7 14 C-3 7 4 D 3 18 12
7 7 0 1 -1 7 10 8 8 0 10 7
a- a+b
b-a+d
c-c-d
d-3.c
e-12.d
f-a+c+d
g-b-c
h-d-a
por favor aguem pode me ajudar

Answer 1

a) $A+B \left[\begin{array}{ccc}-4+5&6+9&8+3\\12+3&-1+7&-2+14\\7+1&7+(-1)&0+7\end{array}\right] = \left[\begin{array}{ccc}1&15&11\\15&6&12\\8&6&7\end{array}\right]$

b) $A+D \left[\begin{array}{ccc}-4+7&6+12&8+10\\12+3&-1+18&-2+12\\7+0&10+7&0+7\end{array}\right] = \left[\begin{array}{ccc}3&18&18\\15&17&10\\7&17&7\end{array}\right]$

c) $C-D \left[\begin{array}{ccc}11+7&2+12&-1+10\\-3+3&7+18&4+12\\10+0&8+10&8+7\end{array}\right] = \left[\begin{array}{ccc}18&14&9\\0&25&16\\10&18&15\end{array}\right]$

d) $3.C \left[\begin{array}{ccc}11.3&2.3&-1.3\\-3.3&7.3&4.3\\10.3&8.3&8.3\end{array}\right] = \left[\begin{array}{ccc}33&6&-3\\-9&21&12\\30&24&24\end{array}\right]$

e) $12.D= \left[\begin{array}{ccc}84&144&120\\36&216&144\\0&120&84\end{array}\right]$

f) $A+C+D \left[\begin{array}{ccc}-4+11+7&6+2+12&8+(-2)+10\\12+(-3)+3&-1+(-3)+18&-2+4+12\\7+10+0&7+8+10&0+8+7\end{array}\right]$ = $\left[\begin{array}{ccc}14&20&16\\12&14&14\\17&25&15\end{array}\right]$

g) $B-C \left[\begin{array}{ccc}5-11&9-2&3-(-1)\\3-(-3)&7-7&14-4\\1-10&-1-8&7-8\end{array}\right] = \left[\begin{array}{ccc}-6&7&4\\6&0&10\\-9&-9&-1\end{array}\right]$

h) $D-A \left[\begin{array}{ccc}7-(-4)&12-6&10-8\\3-12&18-(-1)&12-(-2)\\0-7&10-7&7-0\end{array}\right] = \left[\begin{array}{ccc}11&6&2\\-9&19&14\\-7&3&7\end{array}\right]$