If \[f:R\to R\] is given by \[f(x)=\frac{{{x}^{2}}-4}{{{x}^{2}}+1},\] then the function f is

If \[f:R\to R\] is given by \[f(x)=\frac{{{x}^{2}}-4}{{{x}^{2}}+1},\]

1.	If \[f:R\to R\] is given by \[f(x)=\frac{{{x}^{2}}-4}{{{x}^{2}}+1},\] then the function f is
A.	many-one onto
B.	many-one into
C.	one-one into
D.	one-one onto
Answer» B. many-one into

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If \[f:R\to R\] is given by \[f(x)=\frac{{{x}^{2}}-4}{{{x}^{2}}+1},\] then the function f is

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