в) (-1,2)²; г) (2/3)³; д) (-1 1/2)⁴; е) (-3 1/4)².

в) $$(-1,2)^2 = (-1,2) \cdot (-1,2) = 1,44$$

г) $$(\frac{2}{3})^3 = \frac{2}{3} \cdot \frac{2}{3} \cdot \frac{2}{3} = \frac{8}{27}$$

д) $$(-1 \frac{1}{2})^4 = (-\frac{3}{2})^4 = (-\frac{3}{2}) \cdot (-\frac{3}{2}) \cdot (-\frac{3}{2}) \cdot (-\frac{3}{2}) = \frac{81}{16} = 5 \frac{1}{16}$$

е) $$(-3 \frac{1}{4})^2 = (-\frac{13}{4})^2 = (-\frac{13}{4}) \cdot (-\frac{13}{4}) = \frac{169}{16} = 10 \frac{9}{16}$$

Ответ: в) $$1,44$$, г) $$\frac{8}{27}$$, д) $$5 \frac{1}{16}$$, e) $$10 \frac{9}{16}$$