y' = 1/3 (1/√(1-x^2)) + 3/(1+x^2) = (1/3)(1/√(1-x^2)) + 3/(1+x^2)
y' = a4xarcsin(x^4) = 4ax^2*arcsin(x^4)
y' = 5/(1 + (корень из x)^2) (1/(2 корень из x) + 2) = 5/(1 + x)*(1/(2√x) + 2)
y' = 1/3 (1/√(1-x^2)) + 3/(1+x^2) = (1/3)(1/√(1-x^2)) + 3/(1+x^2)
y' = a4xarcsin(x^4) = 4ax^2*arcsin(x^4)
y' = 5/(1 + (корень из x)^2) (1/(2 корень из x) + 2) = 5/(1 + x)*(1/(2√x) + 2)