4.287 Вычислите значение: a) p² при p = -4; p = 1/9; p = 0,6; p = -0,8; p = -2 1/3; p = 3 1/5; б) b³ при b = -2; b = -2/3; b = 0,1; b = -0,1; b = -1 1/5; b = 2 1/2.

а) Для \(p^2\): \(p = -4\): \((-4)^2 = 16\) \(p = \frac{1}{9}\): \((\frac{1}{9})^2 = \frac{1}{81}\) \(p = 0,6\): \((0,6)^2 = 0,36\) \(p = -0,8\): \((-0,8)^2 = 0,64\) \(p = -2 \frac{1}{3} = -\frac{7}{3}\): \((-\frac{7}{3})^2 = \frac{49}{9} = 5 \frac{4}{9}\) \(p = 3 \frac{1}{5} = \frac{16}{5}\): \((\frac{16}{5})^2 = \frac{256}{25} = 10 \frac{6}{25}\) б) Для \(b^3\): \(b = -2\): \((-2)^3 = -8\) \(b = -\frac{2}{3}\): \((-\frac{2}{3})^3 = -\frac{8}{27}\) \(b = 0,1 = \frac{1}{10}\): \((\frac{1}{10})^3 = \frac{1}{1000} = 0,001\) \(b = -0,1 = -\frac{1}{10}\): \((-\frac{1}{10})^3 = -\frac{1}{1000} = -0,001\) \(b = -1 \frac{1}{5} = -\frac{6}{5}\): \((-\frac{6}{5})^3 = -\frac{216}{125} = -1 \frac{91}{125}\) \(b = 2 \frac{1}{2} = \frac{5}{2}\): \((\frac{5}{2})^3 = \frac{125}{8} = 15 \frac{5}{8}\)