If \[f:R\to R,f(x)=\left\{ \begin{matrix} x\left| x \right|-4,x\in Q \\ x\left| x \right|-\sqrt{3}\,x\notin Q \\ \end{matrix}, \right.\] then \[f(x)\] is

If \[f:R\to R,f(x)=\left\{ \begin{matrix} x\left| x \right|-4,x\i

1.	If \[f:R\to R,f(x)=\left\{ \begin{matrix} x\left\| x \right\|-4,x\in Q \\ x\left\| x \right\|-\sqrt{3}\,x\notin Q \\ \end{matrix}, \right.\] then \[f(x)\] is
A.	one to one and onto
B.	Many to one and onto
C.	one to one and into
D.	Many to one and into
Answer» E.

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If \[f:R\to R,f(x)=\left\{ \begin{matrix} x\left| x \right|-4,x\in Q \\ x\left| x \right|-\sqrt{3}\,x\notin Q \\ \end{matrix}, \right.\] then \[f(x)\] is

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