Вычисли:
\( 5^2 = 5 \cdot 5 = 25 \)
\( 5^3 = 5 \cdot 5 \cdot 5 = 125 \)
\( 2.7^2 = 2.7 \cdot 2.7 = 7.29 \)
\( 2.7^3 = 2.7 \cdot 2.7 \cdot 2.7 = 19.683 \)
\( (-0.2)^2 = (-0.2) \cdot (-0.2) = 0.04 \)
\( \left( \frac{4}{9} \right)^2 = \frac{4^2}{9^2} = \frac{16}{81} \)
\( \left( 1 \frac{1}{6} \right)^2 = \left( \frac{7}{6} \right)^2 = \frac{7^2}{6^2} = \frac{49}{36} \)
Ответ: 1. 25; 2. 125; 3. 7.29; 4. 19.683; 7. 0.04; 9. 16/81; 11. 49/36.