A) \[2\sqrt{2}\]
B) \[\sqrt{6}\]
C) \[2\sqrt{3}\]
D) \[3\sqrt{2}\]
Correct Answer: C
Solution :
(c): \[{{\left( x-\frac{1}{x} \right)}^{2}}={{\left( x+\frac{1}{x} \right)}^{2}}-4=16-4=12\] \[\therefore x-\frac{1}{x}=2\sqrt{3}\]You need to login to perform this action.
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