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chép nhầm đề. Làm lại:
\(C=\frac{\left(3.4.2^4\right)^2}{5.2^5.4^2-16^2}=\frac{3^2.2^4.2^8}{5.2^5.2^4-2^8}=\frac{9.2^{12}}{5.2^9-2^8}=\frac{9.2^{12}}{2^8.\left(5.2-1\right)}=\frac{9.2^4}{9}=\frac{2^4}{1}=2^4=16\)
Gấp lắm thì làm vậy
\(C=\frac{\left(3.4.2^2\right)^2}{5.2^5.4^2-16^2}=\frac{3^2.2^4.2^4}{5.2^5.2^4-2^8}=\frac{3^2.2^8}{5.2^9-2^8}=\frac{3^2.2^8}{2^8.\left(5.2-1\right)}=\frac{9}{9}=1\)
1)
a)
\(\frac{-5}{6}.\frac{120}{25}< x< \frac{-7}{15}.\frac{9}{14}\)
\(\frac{-1}{1}.\frac{20}{5}< x< \frac{-1}{5}.\frac{3}{2}\)
\(\frac{-20}{5}< x< \frac{-3}{10}\)
\(\frac{-40}{10}< x< \frac{-3}{10}\)
\(\Rightarrow Z\in\left\{-4;-5;-6;-7;-8;-9;-10;...;-39\right\}\)
\(\frac{\left(3.4.2^4\right)^2}{5.2^5.4^2-16^2}\)
\(=\frac{\left(3.2^2.2^4\right)^2}{5.2^5\left(2^2\right)^2-\left(2^4\right)^2}\)
\(=\frac{\left(3.2^6\right)^2}{5.2^9-2^8}\)
\(=\frac{3^2.2^{12}}{2^8\left(5.2-1\right)}\)
\(=\frac{9.2^4}{9}\)
\(=16\)
\(=\frac{3^2.2^4.2^8}{5.2^5.2^4-2^8}\)
\(=\frac{3^22^{12}}{2^8\left(5.2-1\right)}\)\(=2^4\)