MCQ
Which of the following is an irrational number.
- A$0.3799$
- B$7.\overline{478}$
- C$\sqrt{23}$
- D$\sqrt{225}$
✓
Answer
- $\sqrt{23}$
Solution:
It doesn't represent the form of $\frac{\text{p}}{\text{q}}$ and $\text{q}\not=0$
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