$$\displaystyle\int{ \frac{ \sqrt{ { 2 }^{ 2 } - { x }^{ 2 } } }{ { x }^{ 2 } } }d x$$
$-\arcsin(\frac{x}{2})-\frac{\sqrt{4-x^{2}}}{x}+С$
$\frac{\sqrt{4-x^{2}}}{x^{2}}$
