Question

ai ơi

Answer 1

\(B=6\cdot\dfrac{1}{5^4}\cdot\dfrac{4^3}{3^2}\cdot\dfrac{1}{2}\cdot\dfrac{5^3}{4^3}=\dfrac{6\cdot4^3\cdot5^3}{5^4\cdot2\cdot3^2\cdot4^3}=\dfrac{1}{3\cdot5}=\dfrac{1}{15}\\ \Rightarrow x\cdot B=\dfrac{x}{15}< \dfrac{32}{15}\Rightarrow x< 32\)

Vì \(x\in Z\) nên GTLN của X là 31