Question
An irrational number between $\frac{1}{7}$ and $\frac{2}{7}$ is:
✓
Answer
- $\sqrt{\frac{1}{7}\times\frac{2}{7}}$
Solution:
An irrational number between a and b is given by $\sqrt{\text{ab}}.$
So, an irrational number between $\frac{1}{7}$ and $\frac{2}{7}$ is $\sqrt{\frac{1}{7}\times\frac{2}{7}}.$
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