$$\lim_{x \to 0^-}\left(\frac{\operatorname{asin}{\left(x \right)}}{x - 3}\right) = 0$$
More at x→0 from the left$$\lim_{x \to 0^+}\left(\frac{\operatorname{asin}{\left(x \right)}}{x - 3}\right) = 0$$
$$\lim_{x \to \infty}\left(\frac{\operatorname{asin}{\left(x \right)}}{x - 3}\right)$$
More at x→oo$$\lim_{x \to 1^-}\left(\frac{\operatorname{asin}{\left(x \right)}}{x - 3}\right) = - \frac{\pi}{4}$$
More at x→1 from the left$$\lim_{x \to 1^+}\left(\frac{\operatorname{asin}{\left(x \right)}}{x - 3}\right) = - \frac{\pi}{4}$$
More at x→1 from the right$$\lim_{x \to -\infty}\left(\frac{\operatorname{asin}{\left(x \right)}}{x - 3}\right)$$
More at x→-oo