Question

Preciso de cálcular essas contas mas não sei fazer
Preciso urgente
Peço que não apaguem dnovo obg
Calcule:
A)[5 1] + [-2 6]
[3 0] [ 1 -8]

B)[10 18] - [-7 0]
[-9 15] [12 -4]

C)[3 5 -8] + [1 -5 -1]
[0 -6 10] [-6 0 10]
[1 0 -2] [3 2 1]

D)[5 -2] + [0 -2] - [-4 10]
[-3 1] [9 3] [-1 7]

Espero que entendam
Desde já obrigado

Answer 1

Resposta:

a)

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

b)

$\left[\begin{array}{ccc}10&18\\-9&15\\\end{array}\right]-\left[\begin{array}{ccc}-7&0\\12&-4\\\end{array}\right] = \left[\begin{array}{ccc}17&18\\-21&19\\\end{array}\right]$

c)

$\left[\begin{array}{ccc}3&5&-8\\0&-6&1\\1&0&-2\end{array}\right] +\left[\begin{array}{ccc}1&-5&-1\\-6&0&10\\3&2&1\end{array}\right] =\left[\begin{array}{ccc}4&0&-9\\-6&-6&11\\4&2&-1\end{array}\right]$

d)

$\left[\begin{array}{ccc}5&-2\\-3&1\\\end{array}\right]+\left[\begin{array}{ccc}0&-2\\9&3\\\end{array}\right] - \left[\begin{array}{ccc}-4&10\\-1&7\\\end{array}\right] = \left[\begin{array}{ccc}9&-14\\7&-3\\\end{array}\right]$

Espero ter ajudado!