Giải thích các bước giải:
$C=(\frac{b}{a}(\frac{a}{b})^{\frac{1}{3}})^{\frac{1}{5}}\\C=(\frac{b}{a}(\frac{b}{a})^{-\frac{1}{3}})^{\frac{1}{5}}\\C=((\frac{b}{a})^{-\frac{2}{3}})^{\frac{1}{5}}\\C=(\frac{b}{a})^\frac{-2}{15}$
$D=\sqrt[5]{2\sqrt[3]{2\sqrt2}}\\D=\sqrt[5]{2\sqrt2}\\D=(2^{\frac{3}{2}})^{\frac{1}{5}}\\D=2^{\frac{3}{10}}$
$I=\sqrt{x\sqrt{x\sqrt{x\sqrt x}}}:x^{16}\\I=\sqrt{x\sqrt{x\sqrt{x.x^{\frac{1}{2}}}}}:x^{16}\\I=\sqrt{x\sqrt{x.x^{\frac{3}{4}}}}:x^{16}\\I=\sqrt{x.x^{\frac{7}{8}}}:x^{16}\\I=x^{\frac{15}{16}}:x^{16}\\I=x^{-{\frac{241}{16}}}$
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