Cho \({\log _b}a = x\) và \({\log _b}c = y\). Hãy biểu diễn \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right)\) theo x và y.
A. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = \frac{{5 + 4y}}{{6x}}\)
B. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = \frac{{20y}}{{3x}}\)
C. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = \frac{{5 + 3y^4}}{{3x^2}}\)
D. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = 20x+\frac{{20y}}{{3}}\)
A. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = \frac{{5 + 4y}}{{6x}}\)
B. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = \frac{{20y}}{{3x}}\)
C. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = \frac{{5 + 3y^4}}{{3x^2}}\)
D. \({\log _{{a^2}}}\left( {\sqrt[3]{{{b^5}{c^4}}}} \right) = 20x+\frac{{20y}}{{3}}\)