Tính giá trị biểu thức: 4.2^3:[2^7.(1/3)^2]
Giải thích
\({4.2^3}:\left[ {{2^7}.{{\left( {\frac{1}{3}} \right)}^2}} \right] = {4.2^3}:\frac{{{2^7}}}{{{3^2}}} = \frac{{{2^2}{{.2}^3}{{.3}^2}}}{{{2^7}}} = \frac{{{3^2}}}{{{2^2}}} = \frac{9}{4}\).
\({4.2^3}:\left[ {{2^7}.{{\left( {\frac{1}{3}} \right)}^2}} \right] = {4.2^3}:\frac{{{2^7}}}{{{3^2}}} = \frac{{{2^2}{{.2}^3}{{.3}^2}}}{{{2^7}}} = \frac{{{3^2}}}{{{2^2}}} = \frac{9}{4}\).