MCQ
Which one of the following is a rational number?
- ✓$( \sqrt{7} )^{2}$
- B$ 211\sqrt{7}$
- C$8+\sqrt{7}$
- D$\frac{\sqrt{7}}{9}$
✓
Answer
Correct option: A.
$( \sqrt{7} )^{2}$
$( \sqrt{7} )^{2}$
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