1.

If \[\mathbf{x}+\frac{1}{\mathbf{x}}=\mathbf{5}\], then the value of \[{{\mathbf{x}}^{2}}+\frac{1}{{{\mathbf{x}}^{2}}}=\]

A.  21    
B.  22   
C.  23   
D.  24
Answer» D.  24


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