1 root 2 is rational or irrational
- 1 upon root 2 is rational or irrational
- 1 by root 2 is rational or irrational number
- 1 under root 2 is rational or irrational
- 1 divided by root 2 is rational or irrational
- 1 upon under root 2 is rational or irrational
- 1 upon root 2 is a rational or irrational number
- 1 / root 2 is rational or irrational
- Rational and irrational number