MCQOPTIONS
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| 1. |
If $$\left( {x + \frac{1}{x}} \right){\text{ = }}\sqrt {13} {\text{,}}$$then the value of $$\left( {{x^3} - \frac{1}{{{x^3}}}} \right)$$is = ? |
| A. | 6 |
| B. | 7 |
| C. | 0 |
| D. | 6 |
| Answer» E. | |