Question

$( - 1 \times \frac23)^3 \div ( - 2 \times \frac{1}{2})^2 \div ( \frac{2}{3})^2 \times ( - 1 \times \frac{1}{3}) ^{ - 1}$
cu tot cu rezolvare va rog

Answer 1

(-1×2/3)^3:(-2×1/2)^2 : (2/3)^2×(-1×1/3)^-1 =

= (-2/3)^3:(-1)^2: 4/9 × (-1/1/3) =

= - 8/27 : (+1) : 4/9× (-3) =

= - 8/27 × 9/4 × (-3) =
simplificam 8 cu 4,ramane 2
simplificam 27 cu 9,ramane 3
= - 2/3 × (-3) =
(-) ×(-) = (+)
= 6/3 =

= 2