Найти производную y=x*arccos(x/2) - √(4-х²)

y ' = (x) ' *arccos(x/2) + x* (arccos(x/2)) '  +[latex] \frac{-2x}{2 \sqrt{4- x^{2} } } [/latex]= = arccos(x/2) - [latex] \frac{x}{ \sqrt{ 2^{2}- x^{2}} } [/latex] +[latex] \frac{x}{ \sqrt{4- x^{2} } } [/latex]= =arccos(x/2)