1.

If \[{{x}^{2}}+\frac{1}{{{x}^{2}}}=53\], find the value of \[x-\frac{1}{x}\].

A.  \[\sqrt{51}\]   
B.  \[\sqrt{53}\]   
C.      \[\sqrt{61}\]   
D.      \[\sqrt{63}\]   
Answer» B.  \[\sqrt{53}\]   


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