а) [m]2-(\frac{1}{3})^{-2}*4^0 + (\frac{1}{27})^{-1/3} = [/m]
[m]= 2 - 3^2*1 + 27*{1/3} = 2 - 9 + 3 = -4[/m]
б) [m]3\sqrt[3]{8}+4\sqrt[5]{-32} + \sqrt[4]{625} = [/m]
[m]= 3*2 + 4(-2) + 5 = 6 - 8 + 5 = 3[/m]
в) [m]\sqrt[4]{10-\sqrt{19}}*\sqrt[4]{10+\sqrt{19}} = [/m]
[m]= \sqrt[4]{(10-\sqrt{19})(10+\sqrt{19})} = \sqrt[4]{100-19} = \sqrt[4]{81} = 3[/m]