Question

calcule o valor de cada expressões:​

Answer 1

Resposta:

Explicação passo a passo:

[(-5/3)^-1 + (5/2)^-1]^-1=

[-3/5+2/5]^-1=

[-1/5]^-1=

-5

[3^-1-(-3)^-1]^-1=

[1/3-(-1/3)]^-1=

[1/3+1/3]^-1=

[2/3]^-1=

3/2

6.(2/3)^2 +4.(-3/2)^-2=

6.4/9 + 4.(-2/3)^2=

24/9 +4.4/9=

24/9+16/9=

40/9