The function \[f(x)=log\left( x+\sqrt{{{x}^{2}}+1} \right)\], is

1.	The function \[f(x)=log\left( x+\sqrt{{{x}^{2}}+1} \right)\], is
A.	neither an even nor an odd function
B.	an even function
C.	an odd function
D.	a periodic function
Answer» D. a periodic function

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The function \[f(x)=log\left( x+\sqrt{{{x}^{2}}+1} \right)\], is

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