\left\{\left\{\left\{\left\{\left\{-\left(3 x^2\right),-3 x^2,-3 x^2\right\},3-3 x^2\right\},\sqrt{3-3 x^2}\right\},\frac{1}{\sqrt{3-3 x^2}},\frac{1}{\sqrt{3-3 x^2}}\right\},\int \frac{1}{\sqrt{3-3 x^2}} \, dx,\frac{\sin ^{-1}(x)}{\sqrt{3}}\right\}