MCQOPTIONS
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| 1. |
If \[{{x}^{2}}+\frac{1}{{{x}^{2}}}=79,\] what is the value of \[x+\frac{1}{x}\]? |
| A. | \[7\] |
| B. | \[9\] |
| C. | \[\sqrt{79}\] |
| D. | \[-9\] |
| Answer» C. \[\sqrt{79}\] | |