П.79 Вычислите значение выражения:

a) (3,3)² + (-0,3)² = 10,89 + 0,09 = 10,98;
б) (-0,3 + 0,2)² = (-0,1)² = 0,01;
в) \(\left\)\(-\frac{1}{4}\right\)^3 - \(\left\)\(\frac{3}{4}\right\)^3 = -\(\frac{1}{64}\) - \(\frac{27}{64}\) = -\(\frac{28}{64}\) = -\(\frac{7}{16}\);
г) \(\left\)\(-\frac{1}{6} + \frac{5}{6}\right\)^3 = \(\left\)\(\frac{4}{6}\right\)^3 = \(\left\)\(\frac{2}{3}\right\)^3 = \(\frac{8}{27}\).