Question

1/6a ×8b²×3/4ba³ при a＝－2 b＝1/2

Answer 1

$\frac{1}{6} \times 8b \times \frac{3}{4} ba {}^{3} = \frac{1}{2} a \times 2b \times ba {}^{3} = ab {}^{2} \times ba {}^{3} = a {}^{4}b {}^{3}$
подставляемые заданные числа
a = -2
b = 1/2
$( - 2) {}^{4} \times (\frac{1}{2}) {}^{3} = - 2 {}^{4} \times 2 {}^{ - 3} = - 2$