Toán Lớp 7: 2^12*3^5-4^6.9^2/(2^2*3)^6+8^4*3^5
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Toán Lớp 7: 2^12*3^5-4^6.9^2/(2^2*3)^6+8^4*3^5
Comments ( 1 )
\dfrac{{{2^{12}}{{.3}^5} – {4^6}{{.9}^2}}}{{{{\left( {{2^2}.3} \right)}^6} + {8^4}{{.3}^5}}}\\
= \dfrac{{{2^{12}}{{.3}^5} – {2^{12}}{{.3}^4}}}{{{2^{12}}{{.3}^6} + {2^{12}}{{.3}^5}}}\\
= \dfrac{{{2^{12}}{{.3}^4}\left( {3 – 1} \right)}}{{{2^{12}}{{.3}^5}.\left( {3 + 1} \right)}}\\
= \dfrac{2}{{3.4}}\\
= \dfrac{1}{6}
\end{array}$