Tamil Nadu Board Solutions for Chapter: Real Numbers, Exercise 14: Exercise

If $\sqrt{9^x}=\sqrt[3]{9^2}$, then $x=\_\_\_$

The length and breadth of a rectangular plot are $5\times {10}^5$ and  $4\times {10}^4$ meter respectively. Its area is ______.

Classify the number as rational or irrational:

 $\sqrt{10}$

Classify the number as rational or irrational:

$\sqrt{49}$

Classify the number as rational or irrational:

$0.025$

Classify the number as rational or irrational:

$0.7\overline{6}$

Classify the number as rational or irrational:

$2.505500555 \dots$

Classify the number as rational or irrational:

 $\frac{\sqrt{2}}{2}$