[tex]\bf 1.\\ \\ a)\ \ \ \Big(\dfrac{8}{11}\Big)^2=\dfrac{8^2}{11^2}=\dfrac{64}{121}\\ \\ \\ b)\ \ \ \Big(\dfrac{3}{4}\Big)^3=\dfrac{3^3}{4^3}=\dfrac{27}{64}\\ \\ \\ d)\ \ \ \Big(-\dfrac{5}{6}\Big)^3=-\dfrac{5^3}{6^3}=-\dfrac{125}{216}[/tex]
[tex]\bf 2.\\ \\ a)\ \ 2,3^2=2,3\cdot2,3=5,29\\ \\ b)\ \ (-0,5)^3=-0,5\cdot0,5\cdot0,5=-0,125\\ \\ c)\ \ (-2,1)^4=2,1\cdot2,1\cdot2,1\cdot2,1=19,4481\\ \\ d)\ \ 13,72^o=1\\ \\ e)\ \ |-2|^3=2^3=8[/tex]
