Which of the following function(s) has/have removable discontinuity at

1.	Which of the following function(s) has/have removable discontinuity at \[x=1\]?
A.	\[f(x)=\frac{1}{In\left\| x \right\|}\]
B.	\[f(x)=\frac{1}{{{x}^{3}}-1}\]
C.	\[f(x)={{2}^{{{2}^{\frac{1}{1-x}}}}}\]
D.	\[f(x)=\frac{\sqrt{x+1}-\sqrt{2x}}{{{x}^{2}}-x}\]
Answer» E.

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Which of the following function(s) has/have removable discontinuity at \[x=1\]?

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