1.

If \[\mathbf{x}+\frac{1}{x}=\mathbf{4}\], find the value of \[{{\mathbf{x}}^{\mathbf{2}}}+\frac{1}{{{\mathbf{x}}^{\mathbf{2}}}}\]

A. 16
B. 18
C. 14
D. 12
Answer» D. 12


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