Question

a) 2a + 3b,para a = - 1/2 e b = 2 /3

Answer 1

Basta substituir:

2a + 3b

 2(\frac{-1}{2} ) + 3. \frac{2}{3} [/tex]

$\frac{2.(-1)}{1.2}$ + $\frac{3.2}{1.3}$

$\frac{-2}{2}$ + $\frac{6}{3}$

2,3|2
1,3|3
1,1

2 x 3 = 6

$\frac{-6+12}{6}$

$\frac{6}{6}$

Resposta = 1

Bons estudos!