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1. |
If \({x^4} + \frac{1}{{{x^4}}} = 98\) and x > 1, then what is the value of \(x - \frac{1}{x}?\) |
A. | 2 |
B. | 2√2 |
C. | √5 |
D. | √3 |
Answer» C. √5 | |