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1. |
If \({{\rm{x}}^2} - {\rm{x}}\sqrt {68} + 1 = 0\), then what is the value of \({\rm{x}} - \frac{1}{{\rm{x}}}\)? |
A. | √66 |
B. | 8 |
C. | √62 |
D. | 6 |
Answer» C. √62 | |