a)\\ 4^{-2}\\ *\\ (\\frac{1}{4})^{-2}\\ *\\ 4^{-2}\\ \\ \\\\ b)\\ (-0,6)^{-4}\\ * (1\\frac{2}{3})^{-4}\\ *\\ 2^{-4} \\\\ c)\\ (-\\frac {4}{7})^{-5}\\ *\\ (-\\frac{7}{8})^{-5}\r\nd)(0,5)^{-2}\\ / (2,5)^{-2}\\\\ e)(-\\frac{4}{3})^{-4}/(2\\frac{2}{3})^{-4} \\\\f)(-0,001)^{-3}/(\\frac{1}{100})^{-3}\r\n