19.3. Сравните значения выражений.

а) (1/3)^2 = 1/9, (1/3)^0 = 1; (1/3)^0 > (1/3)^2. б) (-1/4)^2 = 1/16, (1/4)^0 = 1; (1/4)^0 > (-1/4)^2. в) (-2)^3 = -8, (-2)^0 = 1; (-2)^0 > (-2)^3. г) 5^0 = 1, 5^4 = 625; 5^4 > 5^0.