Functions Test ...

If $$f(x)=\dfrac{x}{\sqrt{1+x^{2}}}$$ then $$fofof(x)=$$

The domain of $$\displaystyle f(x)=\sqrt{\frac{x+7}{x+5}}$$ is

The domain of $$f(x)=\sqrt{[x]^{2}-[x]-6}$$ is

The domain of $$f(x)=\sqrt{\sin^{-1}(\log_{9}x)}$$ is

The domain of $$f(x)=\sin^{-1}\displaystyle \left\{\log_{3}\left(\frac{x^{2}}{3}\right)\right\}$$ is

The domain of $${ f }({ x })=\tan ^{ -1 } (5x) $$ is

The domain of $$f(x)=\sqrt{\left | x \right |-x} $$ is

The domain of $$ \displaystyle f(x)= { \sin }^{ -1 }\left(\dfrac { 2x-3 }{ 5 } \right)$$ is

The domain of  $$f(x)=\log_{x}12$$ is

The domain of $${f}({x})=\log|x^{2}-9|$$ is