[tex]x=2^{-\frac{5}{6} }\cdot\sqrt[3]{128}\\\\x= 2^{-\frac{5}{6} }\cdot(2^7)^{\frac{1}{3} }\\\\x=2^{-\frac{5}{6} }\cdot2^{\frac{7}{3} }\\\\x=2^{-\frac{5}{6} +\frac{7}{3} }\\\\x=2^{-\frac{5}{6} +\frac{14}{6} }\\\\x=2^{\frac{14}{6} -\frac{5}{6} }\\\\x=2^{\frac{9}{6} }=2^{\frac{3}{2} }[/tex]
wtedy [tex]\omega=\frac{3}{2}[/tex]
x ≈ 2,828
k = 2, bo: 2 < 2,828 < 3