Question

2) calcule a matriz 2.A+B, sendo A=(2 1/2) B= (-3-2/6)
a) (1 213)
b)(2 2/3)
c) (1 4/3)
d) (12)​

Answer 1

Resposta:

Explicação passo-a-passo:

2.2+1/2+(-3)-2/6

4+0,5+(-3)-0,33

4,50+(-3)-0,33

1,50-0,33

1,177...

Answer 2

Resposta:

Letra C

Explicação passo a passo:

$2.A + B=\\ \\ 2.(2 ~~\dfrac{1}{2})~+~~(-3~~\dfrac{2}{6})=\\ \\ \\ (4~~\dfrac{\not2}{\not2}~)~+~(-3~~\dfrac{\not2}{\not6_3})=\\ \\ \\ (4-3~~~1+\dfrac{1}{3})\\ \\ \\ (1~~~~\dfrac{3+1}{3})=\\ \\ \\\boxed{ (1~~\dfrac{4}{3})}$