lim_(x→0) 7x/arcsin3x
[m]lim_{x → 0}\frac{7x}{arcsin3x}=lim_{x → 0}\frac{7\cdot 3x}{3\cdot arcsin3x}=\frac{7}{3}\cdot lim_{x → 0}\frac{3x}{arcsin3x}=\frac{7}{3}\cdot 1=\frac{7}{3}[/m]
