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\[ \begin{aligned} 1)&\ \frac{x}{\sqrt2}=\frac{x\sqrt2}{2}\\ 2)&\ \frac{a}{\sqrt5}=\frac{a\sqrt5}{5}\\ 3)&\ \frac{7}{\sqrt3}=\frac{7\sqrt3}{3}\\ 4)&\ \frac{8}{\sqrt{11}}=\frac{8\sqrt{11}}{11}\\ 5)&\ \frac{5}{\sqrt a}=\frac{5\sqrt a}{a}\\ 6)&\ \frac{3}{2\sqrt x}=\frac{3\sqrt x}{2x}\\ 7)&\ \frac{y}{3\sqrt5}=\frac{y\sqrt5}{15}\\ 8)&\ \frac{4}{3\sqrt7}=\frac{4\sqrt7}{21}\\ 9)&\ \frac{11}{2\sqrt3}=\frac{11\sqrt3}{6}\\ 10)&\ \frac{7}{a\sqrt6}=\frac{7\sqrt6}{6a} \end{aligned} \] При \(a>0,\ x>0\).